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Testo 330-2G LL Combustion Analyzer
Advanced combustion efficiency analyzers with dynamic graphic interface
$2,460.00
$2,214.00
Testo 310 Residential Combustion Analyzer
Fully-featured, top-of-display icons, rugged, wide parameter range
$625.00
$562.50
Testo 330-1G LL Combustion Analyzer
Advanced combustion efficiency analyzers with dynamic graphic interface
$1,978.00
$1,780.20
Testo 320 Combustion Analyzer
RESNET certified combustion analyzer, combustion analysis in HD, high def & heavy duty, for residential and commercial applications
$1,250.00
$1,125.00
Testo 875i-1 Thermal Imager Kit
The Testo 875i-1 offers 19,200 pixels (160 x 120), up to 662°F temp range, and 50mk sensitivity
$2,895.00
$2,605.50
Testo 510 Digital Manometer
Handheld, differential pressure meter for installation and maintenance work in and around ventilation and air conditioning
$149.00
$134.10
In Stock
Testo 420 Flow Hood Kit
App integration via Bluetooth, flow straightener for more precise measurement at turbulent outlets
$2,195.00
$1,975.50
Testo 174 Temperature & Relative Humidity Data Logger
Temperature and relative humidity data logger with 16,000 memory slots available
$61.00
$54.90
Testo 635 Thermo Hygrometer
Humidity and temperature meter with wireless and memory options
$385.00
$346.50
Testo 625 Thermo Hygrometer
Handheld humidity and temperature meter with remote probe or wireless options
$251.00
$225.90
Testo 925 Type K Thermometer
1 channel temperature measuring instrument with optional wireless probes, Measuring range: -58 to 1832°F (-50 to 1000°C)
$111.00
$99.90
Testo 645 Humidity Meter
Long-term stable, highly accurate humidity sensor, data analysis using comSoft 3
$757.00
$681.30
Testo 425 Thermal Anemometer
Hot wire thermo-anemometer and compact air velocity and volume meter with thermal probe
$495.00
$445.50
Testo 549 Digital Manifold
Precisely measures high / low side pressure and instantly displays the corresponding saturation / evaporation temperatures for 60 refrigerants
$199.00
$179.10
Testo 882 Thermal Imager Kit
The Testo 882 offers 76,800 pixels (320 x 240), -4 to 662°F, and 50mK thermal sensitivity
$8,295.00
$7,465.50
Testo 175 Series Data Logger
Compact data loggers for temperature and humidity
$150.00
$135.00
In Stock
Testo 405 Hot Wire Thermo-Anemometer
Economical, highly accurate hot wire thermo-anemometer with telescopic probe
$142.00
$127.80
In Stock
Testo 435 Multifunction HVAC and IAQ Meter
Easily measure flow speed, volume flow, air humidity and air temperature in one sequence, perfect for HVAC and IAQ applications
$564.00
$507.60
Testo 480 IAQ Pro Meter
Reliable, accurate, rugged, meets any indoor climate measurement
$1,283.00
$1,154.70
In Stock
Testo 570 Refrigeration System Analyzer Kit
Simultaneous superheating and subcooling calculations in real-time, w/ data storage
$750.00
$675.00
Testo 405i Hot Wire Anemometer
Smart probe that measures air velocity, volume flow, and temperature and transmits data via Bluetooth to an App on your smart device
$108.00
Testo 410i Vane Anemometer
Smart probe that measures air velocity, volume flow, and temperature and transmits data via Bluetooth to an App on your smart device
$90.00
Testo 416 Mini-Vane Anemometer
Vane anemometer with cabled telescopic vane probe
$550.00
$495.00
Testo 535 Ambient CO2 Monitor
Highly accurate 2 channel infrared sensor carbon dioxide monitor with a 0 to 9,999 ppm measuring range
$543.00
$488.70
In Stock
Testo 6740 Trace Humidity Sensor
Ideal for monitoring compressed air dryers and preventing system damage from condensing water vapor
$1,270.00
$1,143.00
Testo 557 Digital Manifold
4-valve refrigeration system analyzer with a remote vacuum probe for faster and more reliable evacuations
$499.00
$449.10
Testo 610 Air Humidity and Temperature Meter
Pocket-sized professional moisture measurement technology
$151.00
$135.90
In Stock
Testo 550 Digital Manifold
Bluetooth enabled analyzer performs accurate temperature, pressure, superheat and sub-cooling measurements on refrigeration systems
$299.00
$269.10
Testo 410 Air Velocity Meter
Vane anemometer and humidity meter with integrated NTC air thermometer
$113.00
$101.70
Testo 608 Thermo Hygrometer
Affordable instrument continuously measures humidity, temperature and dewpoint from a wall or desktop
$87.00
$78.30
In Stock
Testo 205 pH/Temperature Meter
Rugged food penetration pH meter with automatic temperature compensation
$271.00
$243.90
Testo 875i-2 Deluxe Thermal Imager Kit
The Testo 875i-2 kit offers 19,200 pixels (160 x 120), up to 662°F temp range, and 50mk sensitivity
$5,495.00
$4,945.50
Testo Refrigeration Smart Probe Set
Measure high-side & low-side refrigerant pressure & temperatures of AC/refrigeration systems & transmits data to your smart device
$266.00
Testo 606 Moisture Meters
Pocket-sized professional moisture measurement technology
$104.00
$93.60
Testo 6651/6681 Humidity Transmitter
High-performance transmitters designed for monitoring critical climate applications in process engineering
$488.00
$439.20
Testo 816-1 Sound Level Meter
Top-of-the-line sound level meter with an accuracy of ±1.4 dB and integrated storage for up to 31,000 readings
$619.00
$557.10
Testo VAC Smart Probe Set
Combination of four instruments to test and balance a multioutlet ventilation system & transmit data to your smart device
$381.00
Testo 176 Data Loggers
Up to 5-channel data loggers with high accuracy and metal housing
$378.00
$340.20
In Stock
Testo 6351 Differential Pressure Transmitter
Testo 6351 Differential Pressure Transmitter - Measures differential pressure, flow velocity and flow volume
$717.00
$645.30
Testo 417 Large Vane Anemometer
Vane probe anemometer with built-in 4 inch vane
$399.00
$359.10
Testo 922 Dual Type K Thermometer
Measuring range: -58 to 1832°F (-50 to 1000°C), ideally suited for application in the HVAC field, 2-channel temperature measuring
$154.00
$138.60
Testo 6621 RH & Temperature Transmitter
2 channel sensor, accurate, dependable RH sensor technology (± 2.5% RH), functional, attractive housing blends into any environment
$221.00
$198.90
Testo 622 / 623 Ambient Conditions Monitors
Precision benchtop measurement of temperature, humidity and pressure
$191.00
$171.90
Testo 115i Pipe Clamp Thermometer
Smart probe that measures the temperature of pipes and transmits data via Bluetooth to an App on your smart device
$60.00
Testo 316-1 Gas Leak Detector
Reliable natural gas leak detection with flexible probe
$253.00
$227.70
Testo 605i Thermo-Hygrometer
Smart probe that measures relative humidity and temperature and transmits data via Bluetooth to an App on your smart device
$90.00
Testo 870-2 Thermal Imager
The Testo 870-2 offers 19,200 pixels (160 X 120), up to 536°F temp range, <100 mK, 34° x 26° field of view, and a digital camera
$2,528.00
$2,275.20
Testo 605-HX Mini Thermohygrometer
Bendable humidity measurement stick
$109.00
$98.10
Testo 316-3 Refrigerant Leak Detector
Reliable leak detection for most refrigerants including all CFC, HFCs and HCFCs
$299.00
$269.10
In Stock
Testo 816 Sound Level Meter
Versatile sound level meter for general purpose sound measurements. Includes bar graph and outputs to connect to other instruments
$493.00
$443.70
Testo 270 Cooking Oil Tester
Easily, quickly and reliably determines the cooking oil quality
$520.00
$468.00
In Stock
Testo Pocket Pro 540 Light Meter
Sensor sensitivity resembles that of the human eye
$146.00
$131.40
In Stock
Testo 549i Refrigeration Pressure Probe
Smart probe that measures refrigeration pressure and transmits data via Bluetooth to an App on your smart device
$72.00
Testo 104 Digital Thermometer
Digital, folding, waterproof thermometer
$98.00
$88.20
In Stock
Testo 511 Digital Manometer
Pocket-sized abolute pressure measuring instrument
$188.00
$169.20
Testo 104 IR Digital Thermometer
Dual purpose folding thermometer with pentration probe and non-contact infrared measurement
$137.00
$123.30
Testo 545 Light Meter w/ Data Logger
Log up to 3,000 readings and calculate the mean value with the touch of a button
$392.00
$352.80
Testo 905i Thermometer
Smart probe that measures air temperature and transmits data via Bluetooth to an App on your smart device
$78.00
Testo 875i-2 Thermal Imager Kit
The Testo 875i-2 offers 19,200 pixels (160 x 120), up to 662°F temp range, and 50mk sensitivity
$4,295.00
$3,865.50
Testo 810 Infrared Thermometer
Allows measurement of both air temperature and non-contact surface temperature in one instrument
$88.00
$79.20
Testo 552 Bluetooth Vacuum Gauge
Digital vacuum/micron gauge with Bluetooth for up to 20,000 microns
$189.00
Testo 830-T1 Infrared Thermometer
-8 to 752°F, 10:1 (D:S), ±1.5°F accuracy, 1 point laser sight, adjustable emissivity (0.1 to 1)
$74.00
$66.60
Testo 510i Manometer
Smart probe that measures differential pressure and transmits data via Bluetooth to an App on your smart device
$102.00
Testo 845 Adjustable Focus Infrared Thermometer
Easily shift between close focus and long distance temperature measurement
$757.00
$681.30
Testo 870-1 Thermal Imager
The Testo 870-1 offers 19,200 pixels (160 X 120), up to 536°F temp range, and <100 mK, 34° x 26° field of view
$1,896.00
$1,706.40
Testo 885-1 Thermal Imager
The Testo 885-1 offers 76,800 pixels (320 x 240), up to 662°F, and 30mk sensitivity
$9,195.00
$8,275.50
Testo 815 Sound Level Meter
Versatile, general purpose instrument provides Class 3L accuracy for the evaluation of sound level in everyday work
$294.00
$264.60
Testo 6383 Differential Pressure Transmitter
Differential pressure transmitter with cleanroom-conforming flat panel design and 10 Pa to 10 hPa measuring range
$1,287.00
$1,158.30
Testo 512 Series Digital Manometers
Pressure and flow velocity measuring instrument with ranges from 0-2 hPa to 0-2000 hPa
$476.00
$428.40
Testo 184 H1 Temperature and Humidity Data Logger
Temperature and humidity data logger with LCD display and USB port for configuration and data download
$170.00
$153.00
Testo 330i Flue Gas Analyzer
Combines proven measuring technology with remote measurement capability and wireless control
$1,610.00
Testo 890 Series Thermal Imager
The Testo 890 offers 307,000 pixels (640 x 480), -4 to 212°F, sensitivity < 40 mK, and the highest resolution
$20,250.00
$18,225.00
Testo 830-T2 Infrared Thermometer
-8 to 752°F, 12:1 (D:S), ±1.5°F accuracy, 2 point laser sight, adjustable emissivity (0.1 to 1)
$99.00
$89.10
Testo 835-T2 Infrared Thermometer
50:1 long distance optic, high temperature range up to 2700 °F
$504.00
$453.60
Testo 6381 Differential Pressure Transmitter
Measures differential pressure, flow velocity and flow volume with optional humidity and temperature measurement.
$899.00
$809.10
Testo 103 Digital Thermometer
Compact, digital, folding, waterproof thermometer
$56.00
$50.40
Testo 6321 Differential Pressure Transmitter
Differential pressure transmitter with full functionality for automated air conditioning and ventilation applications
$369.00
$332.10
Testo 317-2 Gas Leak Stick
Determines ambient propane and methane and audibly warns the user
$164.00
$147.60
Testo 184 T Series Temperature Data Loggers
Convenient, easy-to-use loggers monitor every step of the cold chain in the transport of sensitive goods by rail, in the air, or on the road
$49.00
$44.10
Testo 805i IR Thermometer
Smart probe that measures non-contact temperature and transmits data via Bluetooth to an App on your smart device
$90.00
Testo 184 G1 Temperature, Humidity and Shock Data Logger
Easy-to-use data logger for the monitoring of shock, relative humidity and temperature during transportation
$316.00
$284.40
Testo 805 Mini IR Thermometer
Waterproof infrared thermometer with a measurement range from -25 to +250°C
$49.00
$44.10
Testo Hydronic Heating System Smart Probe Set
Determine gas flow and static pressure, measure temperature of radiators and pipes, and transmit data to your smart device
$254.00
Testo 6440 Series Compressed Air Flow Meters
Measures compressed air flow to aid in the determination of leakage, consumption and the implementation of peak load management
$968.00
Testo 317-3 Ambient CO Stick
Carbon monoxide monitor that detects CO in ambient air and warns with visual and audible alarms
$193.00
$173.70
Testo 835-T1 Infrared Thermometer
50:1 long distance optic, 4-point laser shows the exact measuring area for precise readings
$251.00
$225.90
Testo 885-2 Thermal Imager Kit
The Testo 885-2 offers 76,800 pixels (320 x 240), up to 662°F, and 30mk sensitivity
$11,895.00
$10,705.50
Testo 830-T4 Infrared Thermometer
-8 to 752°F, 30:1 (D:S), ±1°F accuracy, 2 point laser sight, adjustable emissivity (0.1 to 1)
$150.00
$135.00
Testo 835-H1 Infrared Thermometer
50:1 long distance optic, humidity measurement range: 0 to 100% rH
$378.00
$340.20
Testo 184 T4 Temperature Data Logger
Cryogenic temperature logger designed for monitoring goods shipped with dry ice
$213.00
$191.70
Testo 885-2 Deluxe Thermal Imager Kit
The Testo 885-2 offers 76,800 pixels (320 x 240), up to 662°F, and 30mk sensitivity
$12,995.00
$11,695.50
Testo Standard Probes
Wide range of probes for use with the Testo 635 thermo-hygrometer
$68.00
$61.20
Testo 6610 Series Digital Probes
Digital probes for use with the Testo 6681 humidity transmitter
$433.00
$389.70
Testo Clamp Temperature Probe
Testo clamp temperature probe for Testo refrigeration system analyzers
$54.00
$48.60
Testo Temperature Probes
Temperature probes for Testo 400, Testo 650 and Testo 950 reference meters
$102.00
$91.80
Testo Smoke Pump Test Kit
Standard Smoke Pump Test Kit (includes scale, filter paper and lubricant)
$123.00
$110.70
Testo 0602 0993 Fast Action Surface Probe
90° fast action surface probe Type K
$164.00
$147.60
Testo Smart Probe Case
Impact-resistant, flexible, zippered shell with protective foam insert and precise fit compartments
$31.00
Testo Pitot Tube
Pitot tubes for 510/511/512 digital manometers
$139.00
$125.10
Testo 6600 Series Digital Probes
Digital probes for use with the Testo 6651 humidity transmitter
$303.00
$272.70
Testo ComSoft Professional 4 Software
Data management software for Testo light meters
$379.00
$341.10
Testo 0393 0101 Replacement CO Sensor
$525.00
$472.50
Testo P2A Software Package
Parameterizing, adjusting and analyzing software with USB cable and adaptor
$213.00
$191.70
Testo 0554 4209 Tripod
420 Tripod, extendable to 13' (4m)
$360.00
$324.00
Testo 0602 2292 Waterproof Stainless Steel Probe
Waterproof stainless steel food probe, TC type K, tip Ø 4 mm x 125 mm length, -76 to 752°F / -60 to +400°C
$87.00
$78.30
Testo 0602 0593 Type K Immersion Probe
Immersion probe, water tight, TC type K, tip 1.5mm x 300mm length, Temp range: -76 to 1832°F (-60 to 1000°C)
$110.00
$99.00
Testo Infrared Printer
Testo printer with wireless IRDA and infrared interface
$276.00
$248.40
Testo 0393 0005 Replacement O2 Sensor
$110.00
$99.00
Testo Wireless Probes
Wireless probes for use with Testo meters
$74.00
$66.60
Testo Humidity and Pressure Probes
Humidity and pressure probes for Testo 400 & Testo 650 reference meters
$295.00
$265.50
Testo 0602 5793 Type K Cryogenic Probe Type K
Cryogenic probe Type K, 20" / 500mm bendable, tip Ø 1.5 mm (-200 to 40°C)
$40.00
$36.00
Testo TopSafe Protective Case
Indestructible protection case protects from impact
$32.00
$28.80
Testo 0516 1435 Case
Deluxe service case for Compact Pro (435 & 635)
$178.00
$160.20
Testo Saveris External Temperature Probes
A variety of plug-in probes compatible with your Testo Saveris wireless temperature monitoring system
$18.00
$16.20
In Stock
Testo Temperature Probes
Temperature probes for Testo Meters
$48.00
$43.20
Testo 0390 0061 Replacement O2 Sensor
Spare O2-sensor for the testo 330-1 LL / -2 LL
$325.00
$292.50
Testo Sound Level Calibrator
Two-level calibrator (94 and 114 dB) is compatible with any sound level meter with a 1/2 or 1-inch microphone
$454.00
$408.60
Testo Spare Flow Hoods
Spare flow hoods for the 420 Balometer
$200.00
$180.00
Testo Waterproof Pt100 Immersion/penetration Probe
Pt100 sensor for accurate measurements of -58 to 752°F temp range, ideal for laboratory applications
$88.00
$79.20
Testo Comfort Level Probe
Determines the air velocity and draft risk in accordance with DIN EN 13779.
$826.00
$743.40
Testo 0628 0020 Velcro Pipe Wrap Probe
Type K thermocouple attaches to pipes up tp 120mm in diameter, measuring temperatures of -60 to 250°F
$49.00
$44.10
Testo Easy Heat Software
Easy heat software
$136.00
$122.40
Testo 0554 6022 Adjustment Adapter Cable
Adjustment adapter cable for 1-pt adjustment for 650/400 meters, 5 ft, 8-pin DIN plugs
$213.00
$191.70
Testo Silicone Hose
16' silicone hose for pressure measurement
$49.00
$44.10
Testo 0602 1993 Waterproof Surface Probe
Waterproof surface probe with flat tip Type K
$68.00
$61.20
In Stock
Testo Pitot Tube
"L"-type pitot tube 13" SS 1112°F no T/C
$139.00
$125.10
Testo Reference Oil
Analyzed reference oil, 100mL bottle of
$15.00
$13.50
Testo Thermal Printer Paper
Thermal paper for Testo Infrared printer
$30.00
$27.00
In Stock
Testo 0699 3393 Connection Cable
Connection cable for alarm output, 5 meters
$40.00
Testo 435 Air Quality Probes
Air quality probes for the Testo 435 multifunction HVAC and IAQ meter
$509.00
$458.10
Testo Velocity Probes
Velocity probes Testo 400 reference meter
$592.00
$532.80
Testo testoFix Probe Holder
Rеlіаblе аttасhmеnt оf thе рrоbе tо thе ореnіng оf thе tubе wіthоut lоѕіng thе fluе gаѕ
$64.00
Testo 0572 2151 External Humidity / Temperature Probe
External humidity / temperature probe 12 mm, plug-in, without cable
$88.00
$79.20
Testo 0628 0030 Needle Probe
Type T thermocouple for monitoring cooking in an oven at temperatures of -56 to 482°F
$115.00
$103.50
Testo 0393 0053 Replacement CO Sensor
Replacement CO Sensor, 0 to 4000 ppm
$210.00
$189.00
Testo System Case
System case for Comfort Level Measurements
$274.00
$246.60
Testo RH Calibration Set
Perform quick checks or full calibrations for humidity probes
$338.00
$304.20
Testo 0554 7806 SuperResolution
SuperResolution technology improves the image quality by one detector class
$410.00
$369.00
Testo Carbon Dioxide Probe
Carbon dioxide (CO2) ambient probe for Testo 400, Testo 650 and Testo 950 reference meters
$743.00
$668.70
Testo 330 Flexible Gas Probe
Flexible flue gas probe for Testo 330 combustion analyzer
$445.00
$400.50
Testo Carbon Monoxide Probe
Carbon monoxide ambient probe for the Testo 400, Testo 650 and Testo 330 meters
$516.00
$464.40
Testo 0554 8808 Switching Adapter
Switching adapter 5VDC 5A
$51.00
$45.90
Testo RS232 Cable
Connects Testo 545/645 light meter to PC for data transfer
$70.00
$63.00
Testo 0409 1092 Handle for plug in thermocouples
Handle for plug in thermocouples
$83.00
$74.70
Testo 0554 8852 Spare Battery
Spare battery for the 885 and 890
$122.00
$109.80
Testo Tripod
Tripod for the 480 IAQ Meter
$280.00
$252.00
Testo Vane Probe (4" diameter)
Vane probe 4" diameter (100 mm)
$702.00
$631.80
Testo 0516 0220 TopSafe
TopSafe for 925 & 926
$32.00
$28.80
Testo 400520 1901 NIST Temperature Certificate
NIST Temperature certificate with 3 standard points
$85.00
$76.50
Testo Pipe Wrap Temperature Probe
Pipe wrap probe with Velcro for pipes up to 3" in diameter
$94.00
$84.60
Testo 0393 0002 Replacement O2 Sensor
$310.00
$279.00
Testo 435 Air Speed Probes
Air speed probes for the Testo 435 multifunction HVAC and IAQ meter
$343.00
$308.70
Testo Wireless Probe and Upgrade Kit D (RH)
$449.00
$404.10
Testo 0390 0090 Replacement CO Sensor
Replacement CO Sensor, 0 to 8,000 ppm
$800.00
$720.00
Testo Smoke Pump Scale
Smoke pump scale
$27.00
$24.30
Testo Wireless Module
Wireless module for upgrading Testo meters to a wireless option
$65.00
$58.50
Testo Funnel Kit
Flow funnel kit for low flow (>50 CFM) measurements
$219.00
$197.10
Testo 0393 0051 Replacement CO Sensor
$375.00
$337.50
Testo Indoor Air  Quality Probe
IAQ probe including desk-top stand measures temperature, humidity, CO2 and pressure
$1,017.00
$915.30
Testo HUMIDITY-MOISTURE Probes
High temperature/humidity, Flexible humidity probe and Water activity (aW) probe
$1,295.00
$1,165.50
Testo Manual Smoke Pump Filter Paper
Manual smoke pump filter paper - 40 strips
$15.00
$13.50
Testo USB cable
USB cable (mini USB to Standard USB)
$22.00
$19.80
Testo Pipe clamp probe
Thermocouple type K for pipes 0.2" to 2.5", measuring range: -76 to 266°F (-60 to +130°C)
$148.00
$133.20
Testo Wireless Handle
Wireless handle for plug-in probe heads
$150.00
$135.00
Testo Measurement Chamber
Measuring Chamber for Testo Dew Point Transmitters
$245.00
$220.50
Testo Fast Battery Charger
Charging station for two rechargeable batteries
$274.00
$246.60
Testo Globe Probe
Type K, class 1 probe measures the radiation temperature
$507.00
$456.30
Testo 0393 0151 Replacement NO Sensor
Replacement NO Sensor, 0 to 3,000 ppm
$525.00
$472.50
Testo Pressure Reading Adapter
Adapter for pressure readings for Testo 320 / 330 combustion analyzers
$52.00
$46.80
Testo 316-3 Replacement Sensor
Replacement sensor for Testo 316-3 refrigerant leak detector
$55.00
$49.50
Testo Recharger
Recharger with 4 NiMH rechargable batteries
$66.00
$59.40
Testo Cooking Oil Tester Calibration
Factory calibration of Testo 270 cooking oil tester
$100.00
$90.00
Testo 0602 0693 Hi-Temp Surface Probe
Hi-temp surface probe with small flat head
$126.00
$113.40
Testo Combustion Air Temperature Probe
Combustion air temperature probe, 2.4" immersion w/ 13' cable for Testo 330 combustion analyzers
$131.00
$117.90
Testo 0572 6172 Humidity / Temperature Probe
Measuring range: -4 to 158°F, 4 ft cable, 0-100 %RH, mini DIN plug
$269.00
$242.10
Testo System Case for HVAC Measurements
System case for HVAC measurements
$274.00
$246.60
Testo easyKool Software
easyKool software (for 556/560/570)
$299.00
$269.10
Testo 0390 0118 Replacement CO Sensor
$375.00
$337.50
Testo Precision HPD Probe
-40° to 122°F dew point
$2,151.00
$1,935.90
Testo Plug-In Power Supply
Plug-in mains adapter, 5 VDC 500 mA with European adapter, 100-250 VAC, 50-60 Hz
$26.00
$23.40
Testo Bead Tip Thermocouple
Fiber glass sheating, measuring range: -58 to 752°F, 59" flexible bead tip
$31.00
$27.90
Testo Power Supply
100-240 V AC / 6.3 V DC power supply - Power supply/recharger (North American cord)
$55.00
$49.50
Testo 0602 0293 Air / Immersion / Penetration Probe
Air / immersion / penetration probe for wireless handle Type K, tip Ø 3.4 mm x 30 mm, probe Ø 5 mm x 100 mm, -58 to 662°F (-50 to +350°C)
$59.00
$53.10
Testo PTFE (Teflon) sintered filter
Ø 12 mm, not affected by condensation, water-repellent, resistant to corrosive substances
$93.00
$83.70
Testo Pt100 Laboratory Probe
Measuring range: -58 to 752°F
$125.00
$112.50
Testo 0628 0026 Waterproof Needle Probe
Waterproof super-fast needle probe, highly accurate measurements without visible penetration hole, TC type K
$126.00
$113.40
Testo 330 Gas Leak Detection Probe
Gas leak detection probe for Testo 330 combustion analyzer
$313.00
$281.70
Testo 0602 2394 Flat Head Surface Probe
Flat head surface probe Type K
$370.00
$333.00
Testo 0390 0074 Replacement NO Sensor
Replacement NO Sensor, 0 to 3,000 ppm
$525.00
$472.50
NIST Certificate of Calibration
NIST traceable certificate of calibration for sound level meters
$600.00
$540.00
Testo Vane Probe
Vane probe, 0.6" diameter with telescope
$681.00
$612.90
Testo 0554 3931 NO Sensor Upgrade Module
NO Sensor Upgrade Module, 0 to 300 ppm, low range, 0.1 ppm resolution
$753.00
$677.70
Testo High Humidity Level Probe
High humidity level probe w/ heated sensor element, no humidity on sensor
$1,116.00
$1,004.40
Testo 0554 3922 NO Upgrade Module
NO Upgrade Module, 0 to 3000 ppm, high range, 1 ppm resolution
$1,138.00
$1,024.20
Testo Dew Point HPD Probe
Standard compressed air pressure dew point HPD probe, 300 mm length
$1,792.00
$1,612.80
Testo Particle Filter 10 Pack
Particle filters - pack of 10
$31.00
$27.90
Testo 0516 0222 TopSafe for 922
$32.00
$28.80
Testo 0554 0222 TE Adapter
$48.00
$43.20
Testo Industrial TC type K probe
Stainless steel sleeve, 6ft of cable, Measuring range: 58 to 400°F
$51.00
$45.90
Testo Teflon Sintered Filter
Testo Teflon Sintered Filter
$57.00
$51.30
Testo Immersion / penetration temp NTC probe
5ft (1.5m) cable,measuring Range: -31 to 176°F (-35 to +80°C)
$63.00
$56.70
Testo 0516 1200 Case
Compact carrying case
$67.00
$60.30
Testo Waterproof NTC immersion / penetration probe
Measuring range: -58 to +302°F, accuracy 0.5% of reading
$79.00
$71.10
Testo 0628 1292 Penetration probe with metal protection tube
Penetration probe with metal protection tube
$107.00
$96.30
Testo Probe Extension
Probe extension cable 16'
$112.00
$100.80
Testo Pt100 Penetration Probe
Stainless steel food probe for -58 to 752°F temperature range
$159.00
$143.10
Testo IR Printer
IR Printer for the 310 Combustion Analyzer
$186.00
$167.40
Testo 0572 6174 Humidity / Temperature Probe
Measuring range: 0 to 104°F, 7 ft cable, tip 4 mm x 125 mm, 0-100 %RH, mini DIN plug
$314.00
$282.60
Testo 0390 0094 Replacement Low Range NO Sensor
Replacement Low Range NO Sensor, 0 to 300 ppm, 0.1 ppm resolution
$525.00
$472.50
Testo Humidity / temperature probe
± 2%RH, probe Ø 21 mm, 0 to +100 %RH, -4 to 158°F / -20 to +70°C
$531.00
$477.90
Testo Protective Cap
Testo plastic protective cap
$7.00
$6.30
Testo Particle Filter
Particle filters - pack of 10
$26.00
$23.40
Testo 0516 1201 Hard Case
Protect your Testo instrument and probes
$48.00
$43.20
Testo Connection Hose
Connection hose, silicone-free, 5m
$52.00
$46.80
Testo Replacement TC head
Replacement TC head for Pipe Clamp Probe
$56.00
$50.40
Testo Probe Connection Cables
5 or 16 foot probe connection cables for Testo 400 & Testo 645 meters
$62.00
$55.80
Testo Teflon Sintered Filter
Teflon sintered filter (21mm) diam.
$66.00
$59.40
Testo Battery Charger
Desktop charging station for rechargeable battery
$70.00
$63.00
Testo Hard Case
Hard carrying case for Testo 550 Refrigeration System Analyzer
$94.00
$84.60
Testo TC Adapter
connect NiCr-Ni thermocouples and probes with open wire ends
$100.00
$90.00
Testo Replacement Probe
Replacement probe for Testo 205 pH/Temperature meter
$175.00
$157.50
Testo 10N magnetic probe
Thermocouple type K (2.2 lbs. holding force), measuring range: -58 to 752°F (-50 to +400°C), 5.1ft of cable
$197.00
$177.30
Testo Pipe Clamp Probe
Clamp probe NTC for pipes from 1/4" to 2 1/2"
$200.00
$180.00
Testo Hose Extension
9' hose extension for Testo 320 / 330 combustion analyzers
$218.00
$196.20
Testo Flow Funnel
testovent 410 Flow Funnel for low flow (< 50 CFM)
$358.00
$322.20
Testo Thermal Flow Probe
Flow and humidity measurements for ventilation channels and at ceiling/wall outlets. With telescoping handle
$688.00
$619.20
Testo Humidity / Temperature Immersion / Penetration Probe
For equilibrium moisture or for measurements in exhaust ducts to +120°C,
$812.00
$730.80
Testo Storage Cap
Storage cap for use with Testo 205 pH/Temperature meters
$13.00
$11.70
Testo Wall / Duct  Transmitter Holder
Testo Wall / Duct Transmitter Holder
$45.00
$40.50
Testo Surface Temperature Probe
Testo surface temperature probe for Testo 550/570 refrigeration system analyzer
$92.00
$82.80
Testo System Case for 330
Standard system case for 330 analyzer
$106.00
$95.40
Testo Teflon Protection Cap
Testo Teflon Protection Cap
$121.00
$108.90
Testo Power Supply
Wall-mountable 110-240 VAC box power supply
$167.00
$150.30
Testo DIN Rail Power Supply
DIN rail mountable 90-240 VAC power supply
$210.00
$189.00
Testo Pressure-tight Screw Connection
Testo Pressure-tight Screw Connection
$213.00
$191.70
Testo Connection Plug
Connection plug with 2 alarm points for Testo 6740 Series Trace Humidity Sensor
$235.00
$211.50
Testo System Case
System case for Testo 400, 650 and 950 Meters
$241.00
$216.90
Testo Cooling Coil
Cooling coil for Measuring Chamber
$244.00
$219.60
Testo Probe Handle
Probe handle for Testo plug-in measuring tips
$254.00
$228.60
Testo Precision Measurement Chamber
Precision measurement chamber with adjustable flow
$632.00
$568.80
Testo Lithium button battery
Lithium button battery, CR2032
$6.00
$5.40
Testo Silicone Heat Conducting Paste
Silicone heat conducting paste 0.49 oz / 14 g
$17.00
$15.30
Testo Probe Stop
Probe stop, 0.31" diam. probe, steel, with spring clamp and handle, Tmax=932 °F
$23.00
$20.70
Testo Sensor metal protective cap
Sensor metal protective cap (slotted), Ø 12 mm, flow velocities of < 7 m/s
$38.00
$34.20
Testo Service Case
Protective case for the safe storage of Testo instruments
$44.00
$39.60
Testo Sintered Cap
Sintered cap 21mm diameter
$52.00
$46.80
Testo TopSafe
TopSafe for 445, 645
$53.00
$47.70
Testo TopSafe Case
TopSafe Case for 316-1 Analyzer
$61.00
$54.90
Testo 0554 0592 16' Type K extension cable
16' Type K extension cable
$67.00
$60.30
Testo Plastic Envelopes
Plastic envelopes for barcodes (50 pieces)
$74.00
$66.60
Testo Air Temperaure Probe
Testo air temperature probe for Testo 550/570 refrigeration system analyzer
$82.00
$73.80
Testo Power supply
Power supply unit 8VDC 1000mA
$102.00
$91.80
Testo Transport Case
Transport case for Testo 645
$109.00
$98.10
Testo Combustion Air Temperature Probe
Combustion air temperature probe, 7.5"" immersion, 190mm shaft, 2.2 meter cable for Testo 330 combustion analyzers
$131.00
$117.90
Testo Differential Temperature Probe Set
Differential temperature set consisting of 2 Velcro probes and temperature adapter
$132.00
$118.80
Testo Immersion probe Type K
Immersion probe Type K
$173.00
$155.70
Testo Dual Wall Probe
Curved, dual wall probe for annular gap O2 supply
$176.00
$158.40
Testo 0628 9992 Cooking Surface Probe
Surface probe for cooking surfaces, Type K
$185.00
$166.50
Testo Compact Probes
7" or 12" Compact Probes, 1/4" diameter w/ 5' hose 932°F
$197.00
$177.30
Testo Multi-Hole Probe
Modular multi-hole probe (for avg CO), tube only, no handle, 5/16" dia.
$205.00
$184.50
Testo Flue Gas Probe
Modular flue gas probe, 0.3" diameter, 12" long, 25" hose
$262.00
$235.80
Testo 0554 8851 Rapid Charger Two Bay
Rapid Charger Two Bay for the Testo 885 and the Testo 890
$274.00
$246.60
Testo Flow-Through Meter
$300.00
$270.00
Testo Modular Probes
7" or 12" Modular probe, 5/16" dia, w/ 7' hose, t max=932°F
$304.00
$273.60
Testo Flow Funnel
testovent 415 Flow Funnel for low flow (< 50 CFM)
$321.00
$288.90
Testo Telescopic Handle
Increases the reach of the Testo 400 & Testo 650 meters up to 1 meter
$357.00
$321.30
Testo TC with Tube
TC with tube and plug NiCr-Ni
$363.00
$326.70
Testo Aluminum Service Case
Protective aluminum service case for Testo 400 & Testo 650 meters
$371.00
$333.90
Testo Light Probe
Light probe for the 480 IAQ meter
$412.00
$370.80
Testo Humidity and Temperature Probe
Humidity and temperature probe Ø 12 mm
$444.00
$399.60
In Stock
Testo 435 Light Probe
Light probe for the Testo 435 multifunction HVAC and IAQ meter
$454.00
$408.60
Testo Probe Shaft
Replacement 13" probe shaft, 5/16" diameter, t max=1832 °F with probe stop
$507.00
$456.30
Testo Temperature Probes
Pt100 immersion / penetration probe or flexible immersion probe
$546.00
$491.40
Testo 0554 0289 Lens Protection Glass
Lens protection glass for the Testo 885 and 890 thermal imagers
$841.00
$756.90