MRU Instruments

For over 30 years MRU has been designing and manufacturing innovative, exceptional quality portable and stationary gas analyzers for combustion, emissions, bio, and syngas from their headquarters in Neckarsulm - Obereisesheim, Germany. The North American operations are located in Houston, TX, where they support their Boiler Service, Power, Petrochemical, Glass, Cement, Engine/Turbine, and Municipal customers with dependable products, backed by fast and reliable service.

your friendly engineer
Questions? Call one of our engineers at 1-800-884-4967.
MRU OPTIMAX Biogas Analyzer
MRU OPTIMAX Biogas Analyzer
Biogas, Landfill & Engine Exhaust systems for measurements of up to 7 gas components with up to 32,000 point data storage.
Starting at $5,156.00
MRU NOVA Plus Emission Analyzer
MRU NOVA Plus Emission Analyzer
Simultaneous measurements of up to 8 gas components, air purging pump for CO-sensor protection.
Starting at $6,923.00
MRU AMPRO Plus Combustion & Emission Analyzer
MRU AMPRO Plus Combustion & Emission Analyzer
Multi-gas analyzer for stack emissions and combustion measurements of up to 7 gas components.
Starting at $2,367.00
MRU Vario Luxx Emission Analyzer
MRU Vario Luxx Emission Analyzer
Portable stack gas emission analyzer for semi-continuous measurements of industrial combustions.
$10,503.00
MRU DM 9600 Manometer
MRU DM 9600 Manometer
Simultaneously display pressure and temperature readings.
Starting at $537.00
MRU 500GD Fast Response Gas Detector
MRU 500GD Fast Response Gas Detector
Fast, selective, and powerful multifunction detector and measuring device with suction feature for gases, stack moisture, and refrigerants.
$653.00
MRU SWG 100 BioGas Analyzer
MRU SWG 100 BioGas Analyzer
For bio-gas, bio-methane, landfill-gas, coal bed methane.
$13,517.00
MRU SWG 100 Compact BioGas Analyzer
MRU SWG 100 Compact BioGas Analyzer
Designed for use in the harsh environment of combined heat and power (CHP) engine gas monitoring.
$8,007.00
MRU SWG-100 CEM Emission Monitoring System
MRU SWG-100 CEM Emission Monitoring System
Compact industrial design, simultaneous measures up to 6 gases, field replaceable, plug & play pre-calibrated sensors.
$14,566.00
MRU OMS 420 O2 & COe Transmitter
MRU OMS 420 O2 & COe Transmitter
IN-SITU real time analysis for O2 and COe, 0.1 to 25.0% O2 measuring range, aluminum enclosure.
Starting at $4,629.00
MRU SWG 200 Continuous Emission Monitor
MRU SWG 200 Continuous Emission Monitor
Stationary gas analysis system for continuous flue gas and emission monitoring, simultaneous infrared analysis of up to 8 flue gas components.
$22,396.00
MRU 400GD Gas Detector
MRU 400GD Gas Detector
Interchangeable sensors: Natural gas, propane, refrigerants, CO, moisture, or temperature.
$459.00
MRU DM 401 Dust Monitoring System
MRU DM 401 Dust Monitoring System
Double pass opacity monitor, continuous In-Situ measurement, direct continuous measurement across stack.
Starting at $8,898.00
MRU MRU4win PC Software
MRU MRU4win PC Software
Full version software, for real time data acquisition and handling on PC with Windows10.
$298.00
MRU Exchangeable Probe Tubes
MRU Exchangeable Probe Tubes
High grade steel or Inconel, cone included.
Starting at $211.00
MRU L-Type Pitot Tubes
MRU L-Type Pitot Tubes
L-Type Pitot Tube with or without temperature measurement.
Starting at $186.00
MRU 63677 IR Printer
MRU 63677 IR Printer
High speed easy paper loading IR printer.
$387.00
MRU 10156 Replaceable Filter Elements
MRU 10156 Replaceable Filter Elements
Replaceable filter elements for condensate separator.
$20.00
MRU 400GD/500GD Sensor
MRU 400GD/500GD Sensor
Interchangeable sensors for the MRU 400GD and 500GD gas detectors.
Starting at $135.00
MRU 62010 Replacement COe Sensor
MRU 62010 Replacement COe Sensor
Replacement COe Sensor for the OMS 420.
$2,883.00
MRU 63060 SO2 Sensor
MRU 63060 SO2 Sensor
For use with AMPRO Plus, range 0 to 2,000 ppm. To reduce range to 300ppm also order 11183.
$1,016.00
MRU Combustion Air Temperature Probe
MRU Combustion Air Temperature Probe
Choice of 2.5, 8, or 12 inch (65, 200, or 300mm) length options.
Starting at $178.00
MRU 62741 / 62747 Industrial Probe Handle
MRU 62741 / 62747 Industrial Probe Handle
Industrial Probe handle with sampling line.
Starting at $363.00
MRU Instruments Exchangeable Probe Tube
MRU Instruments Exchangeable Probe Tube
Exchangeable probe tube for the Vario Plus industrial probe handle, includes cone.
Starting at $435.00
MRU4u Apple iOS App
MRU4u Apple iOS App
Remote control of measuring units & visualizing, storing & sharing of measuring data via Bluetooth.
$0.00
MRU4u Android App
MRU4u Android App
Remote control of measuring units & visualizing, storing & sharing of measuring data via Bluetooth.
$0.00
MRU 11700 Soot Paper
MRU 11700 Soot Paper
Soot paper (1 pack = 200pcs.).
$13.00
MRU 11701 Soot Comparison Scale
MRU 11701 Soot Comparison Scale
Soot comparison scale for use with the NOVAcompact.
$14.80
MRU 61494 Seal Gasket
MRU 61494 Seal Gasket
Seal gasket for mounting flange ANSI150.
$17.00
MRU 52556 Seal Gasket
MRU 52556 Seal Gasket
Seal gasket for mounting flange DN65.
$19.00
MRU 59465 Printer paper rolls
MRU 59465 Printer paper rolls
Printer paper rolls (5 rolls).
$21.00
MRU 65758 Micro-SD Card
MRU 65758 Micro-SD Card
Micro-SD card including adapter to standard SD card reader.
$25.00
MRU 59773 Shoulder Strap
MRU 59773 Shoulder Strap
Adjustable shoulder strap.
$26.00
MRU 56912 Locking Plug
MRU 56912 Locking Plug
Locking plug for calibration inlet port.
$35.00
MRU 52798 Filter Tablets
MRU 52798 Filter Tablets
50-pack of filter tablets for Pre-Filter 56356.
$41.00
MRU 56356A Pre-Filter
MRU 56356A Pre-Filter
Pre-filter for high dust applications to be mounted after probe handle.
$41.00
MRU 86103 Air Purging Hose
MRU 86103 Air Purging Hose
Air purging hose for use with the DM 401, 1m to 15m lengths available.
Starting at $43.00
MRU 400GD Case
MRU 400GD Case
Compact case, space for instrument, sensors and power supply.
$61.00
MRU Pneumatic Tube Cutting Tool
MRU Pneumatic Tube Cutting Tool
Pneumatic Tube (12mm) Cutting Tool.
$74.00
MRU 14361 Transport Bag
MRU 14361 Transport Bag
Operator carrying bag for use with AMPRO Plus and OPTIMAX.
$81.00
MRU 65670 Stainless Steel Mounting Fitting
MRU 65670 Stainless Steel Mounting Fitting
Stainless steel mounting fitting Ø12mm-1/2in male, with PTFE fixing ring.
$85.00
MRU 63218 Shoulder Strap
MRU 63218 Shoulder Strap
Shoulder strap for AMPRO Plus.
$98.00
MRU 63140USW Service & Cleaning Set
MRU 63140USW Service & Cleaning Set
Service & Cleaning Set.
$133.00
MRU 65028 CO Sensor Protection
MRU 65028 CO Sensor Protection
Separate CO sensor protection by Purafil filter, recommended for use at CHP engines.
$150.00
MRU 63471 Special Cable
MRU 63471 Special Cable
30m (90') special cable replacement of standard 10m special cable of models OMS420RT or OMS420HT.
$153.00
MRU Differential Pressure Sensor
MRU Differential Pressure Sensor
High accuracy differential pressure sensor and measurement ± 100 hPa for continuous draft measurement.
$168.00
MRU 63136 AUX Input
MRU 63136 AUX Input
AUX input for additional parameters.
$185.00
MRU DM 9200 Pilot Tubes
MRU DM 9200 Pilot Tubes
Pilot tubes for the DM 9200, sizes from 3.94in x 0.12in up to 78.71in x 0.47in.
Starting at $198.00
MRU 61399 Solenoid valve
MRU 61399 Solenoid valve
Solenoid valve (back purge).
$217.00
MRU ABS Transport Case
MRU ABS Transport Case
ABS Transport Case, option for additional space.
Starting at $241.00
MRU 51833 Hand Soot Pump
MRU 51833 Hand Soot Pump
Hand soot pump with accessories.
$241.00
MRU 63729 Soft Transport Case
MRU 63729 Soft Transport Case
$241.00
MRU 65647 Resolution Enhancer
MRU 65647 Resolution Enhancer
0.1ppm resolution for range 0 to 100ppm measured NO2.
$265.00
MRU 63994 Resolution Enhancer
MRU 63994 Resolution Enhancer
0.1ppm resolution for range 0-300ppm measured NO.
$265.00
MRU 63993 Resolution Enhancer
MRU 63993 Resolution Enhancer
Resolution enhancment for the 63993 CO Sensor, 0.1ppm resolution for range 0-500ppm measured CO.
$265.00
MRU 11182 Detector Probe
MRU 11182 Detector Probe
Detector Probe with handle and 1.95 m cable (without sensor).
$265.00
MRU AMPRO SO2 Sensor Software Option
MRU AMPRO SO2 Sensor Software Option
Reduces range of 63060 sensor to 300ppm and increases resolution to 0.1ppm.
$265.00
MRU Vario Luxx Sensor Software
MRU Vario Luxx Sensor Software
Special software adjustment to lower the range of CO, NO, NO2, or SO2 electrochemical sensors.
Starting at $265.00
MRU AMPRO CO Sensor Software Option
MRU AMPRO CO Sensor Software Option
Reduces range of 63134 sensor to 500 ppm and increases resolution to 0.1 ppm.
$265.00
MRU AMPRO NO Sensor Software Option
MRU AMPRO NO Sensor Software Option
Reduces range of 63058 sensor to 300 ppm and increases resolution to 0.1 ppm.
$265.00
MRU 60073 Combustion Air Temperature Probe
MRU 60073 Combustion Air Temperature Probe
Combustion air temperature probe, tube length 12".
$305.00
MRU 63903 Internal Sample Flow Monitoring
MRU 63903 Internal Sample Flow Monitoring
Internal Sample Flow Monitoring to check internal filters, pump, hoses.
$316.00
MRU 64158 Automatic Measurement
MRU 64158 Automatic Measurement
Automatic measurement including data storage on SD Card with user definable determination of average value.
$322.00
MRU 62931 ABS Transport Case
MRU 62931 ABS Transport Case
ABS Transport case, with large compartment for accessories, recommended for combined sets.
$333.00
MRU 66114 Consumable Parts Set
MRU 66114 Consumable Parts Set
Consumable parts set for one year operation, set of all filters and required spare parts.
$352.00
MRU 63861UP Remote Control Upgrade
MRU 63861UP Remote Control Upgrade
Add logging and additional functionality to your MRU wireless remote control.
$354.00
MRU 63981 / 63982 Industrial Probe Handle
MRU 63981 / 63982 Industrial Probe Handle
Industrial Probe handle with sampling line.
Starting at $355.00
MRU 11153 Filter Set
MRU 11153 Filter Set
Filter set for solid fuel measurements (Wood, Pellets, Coal) protects the unit against humidity and acid gases.
$387.00
MRU 63139 Gas flow velocity using PITOT Tubes
MRU 63139 Gas flow velocity using PITOT Tubes
Gas flow velocity using PITOT Tubes.
$392.00
MRU Gas Sampling Tube
MRU Gas Sampling Tube
Gas sampling tube for insertion in the stack and mounting on probe HD or HD-GW.
Starting at $436.00
MRU 65179 I/O Module
MRU 65179 I/O Module
I/O Module with 4chanel 4-20mA analog output and 2 alarm relays (fail-safe NO contacts).
$439.00
MRU 13432-D6D8 HPI Probe Adapter
MRU 13432-D6D8 HPI Probe Adapter
Probe adapter for use with Vario Luxx HPI probe system.
$465.00
MRU 65673 Special "S" Type Straight Pitot Tube
MRU 65673 Special "S" Type Straight Pitot Tube
Special "S"-type straight Pitot tube, Ø12 x 250mm, incl. K-type thermocouple for flow velocity (volume) measurement.
$495.00
MRU 86104 Air Dust Filter
MRU 86104 Air Dust Filter
Replacement air dust filter for blower.
$496.00
MRU 64198 Automatic Zeroing of Analyzer
MRU 64198 Automatic Zeroing of Analyzer
Automatic zeroing of analyzer.
$513.00
MRU Instruments Sintered Metal Filter
MRU Instruments Sintered Metal Filter
Sintered metal filter for probe tube, 3µm.
$522.00
MRU 65718 CO Sensor Protection
MRU 65718 CO Sensor Protection
CO sensor protection using additional purging pump and CO cut off valve.
$527.00
MRU 65426 Consumables
MRU 65426 Consumables
Set of particulate filter, activated carbon filter, purafil filter, replaceable hose set for condensate pump.
$546.00
MRU 65832 Special "S" Type Straight Pitot Tube
MRU 65832 Special "S" Type Straight Pitot Tube
Special "S" type straight Pitot tube, Ø12 x 250mm, incl. K-type thermocouple and integrated gas sampling line.
$580.00
MRU 65430 Analyzer External Control
MRU 65430 Analyzer External Control
Analyzer external control via 4x contacts (relays or open collector transistors).
$590.00
MRU Cabinet Heater
MRU Cabinet Heater
Cabinet 200W heater, temperature regulated, for freeze protection at low ambient air temperatures from -20°C to +5°C.
Starting at $683.00
MRU 66030 RS485 to Ethernet converter
MRU 66030 RS485 to Ethernet converter
RS485 to Ethernet converter.
$736.00
MRU 65435 Gas Detector
MRU 65435 Gas Detector
Gas detector (%LEL CH4) to monitor air inside analyzer cabinet.
$755.00
MRU 86137 Replacement Filter Elements
MRU 86137 Replacement Filter Elements
Set of replacement filter elements for compressed air kit.
$757.00
MRU 13291 Active Vent Adapter
MRU 13291 Active Vent Adapter
Active vent adapter for use with MRU AMPRO Plus and OPTIMAX analyzers.
Starting at $801.00
MRU 63937 RCU NO Sensor
MRU 63937 RCU NO Sensor
For use with the NOVA Plus and AMPRO 2000, 0 to 1,000 ppm range.
$824.00
MRU AMPRO NO Sensor
MRU AMPRO NO Sensor
0 to 1,000 ppm with overload of 5,000 ppm, for use with AMPRO Plus. To reduce the range to 300 ppm also order 63135.
$824.00
MRU 65427 Flame Arrestor
MRU 65427 Flame Arrestor
Flame arrestor with 1/4”ID thread, to be mounted directly on biogas pipe at the sampling point or at sample gas inlet.
$827.00
MRU 63866 Peltier Gas Cooler
MRU 63866 Peltier Gas Cooler
Low energy, high efficiency Peltier Gas Cooler with condensate pump.
$831.00
MRU 11247 Filtered Condensate Catch Pot
MRU 11247 Filtered Condensate Catch Pot
Filtered condensate catch pot with automatic draining complete with fittings and canister.
$858.00
MRU Vario Luxx EC Sensors
MRU Vario Luxx EC Sensors
Electrochemical cell technology for gas measurement.
Starting at $896.00
MRU 59979 SWG Awning
MRU 59979 SWG Awning
Aluminum frame awning to protect SWG 100 or 200 devices from weather conditions.
$916.00
MRU 65989 NO Electrochemical Cell Measurement
MRU 65989 NO Electrochemical Cell Measurement
NO electrochemical cell measurement, using long-life electrochemical cell, 0 to 1,000 ppm measuring range.
$937.00
MRU 951002 Sensors
MRU 951002 Sensors
O2, H2Slow, H2, and CO.
Starting at $966.00
MRU 65419 O2 Module
MRU 65419 O2 Module
O2 analysis, 0 to 25%, using long-life electrochemical cell.
$966.00
MRU 63991 H2S Sensor
MRU 63991 H2S Sensor
For use with NOVA Plus Emission Analyzer, 0 to 500 ppm.
$982.00
MRU 63990 SO2 Sensor
MRU 63990 SO2 Sensor
For use with NOVA Plus Emission Analyzer, 0 to 2,000 ppm.
$1,016.00
MRU 66029 RS485 to Profi-Bus converter
MRU 66029 RS485 to Profi-Bus converter
RS485 to Profi-Bus converter.
$1,061.00
MRU 65974 NO2 Electrochemical Cell Module
MRU 65974 NO2 Electrochemical Cell Module
NO2 electrochemical cell measurement, 0 to 200 measuring range, 1,000 ppm overload.
$1,090.00
MRU 65991 SO2 Electrochemical Cell Measurement
MRU 65991 SO2 Electrochemical Cell Measurement
SO2 Electrochemical Cell Module, 0 to 1,000 ppm measuring range, 4,000 ppm overload.
$1,094.00
MRU 65968 CO Electrochemical Cell Measurement
MRU 65968 CO Electrochemical Cell Measurement
CO electrochemical cell measurement, 0 to 4,000 ppm measuring range, 20,000 ppm overload.
$1,104.00
MRU AMPRO NO2 Sensor
MRU AMPRO NO2 Sensor
0 to 200ppm with overload of 1,000ppm, for use with AMPRO Plus. To reduce range to 100ppm also order 65647.
$1,118.00
MRU NO2 Sensor
MRU NO2 Sensor
0 to 200ppm (over range to 1000ppm) for use with the NOVA Plus.
$1,118.00
MRU AMPRO CO Sensor
MRU AMPRO CO Sensor
0 to 40,000 ppm with overload of 100,000 ppm, for use with AMPRO Plus. To reduce the range to 500 ppm also order 63133.
$1,138.00
MRU RCU CO Sensor
MRU RCU CO Sensor
CO ranges from 0 to 40,000 ppm, for use with NOVA Plus Emission Analyzer.
$1,138.00
MRU 63607M Adapter Flange
MRU 63607M Adapter Flange
For use above DN65 style sampling tubes at sites with 4" ANSI 150lbs flanges.
$1,162.00
MRU 10479 H2S Sensor
MRU 10479 H2S Sensor
H2S electrochemical cell measurement of 0 to 2,000ppm with up to 4,000ppm short time overload.
$1,169.00
MRU 64618 CO2 Infrared Module
MRU 64618 CO2 Infrared Module
Single gas NDIR Infrared Module.
$1,223.00
MRU OMS 420 Probes
MRU OMS 420 Probes
316Ti stainless steel DN65 PN6 flange and Inconel steel DN65 PN6 flange models.
Starting at $1,324.00
MRU 59528 Replacement O2 Sensor
MRU 59528 Replacement O2 Sensor
Replacement O2 Sensor for the OMS 420.
$1,390.00
MRU 65990 CO Electrochemical Cell Measurement
MRU 65990 CO Electrochemical Cell Measurement
CO Electrochemical Cell Module, including CO sensor cutoff valve and air purging pump for sensor protection.
$1,487.00
MRU 86105 Calibration Head Assembly
MRU 86105 Calibration Head Assembly
Calibration Head Assembly, for manual zero/span check.
$1,574.00
MRU 62592A / 62592C Gas Sampling Probe
MRU 62592A / 62592C Gas Sampling Probe
Gas sampling probe model LD, for low dust with on tip sintered metal filter.
Starting at $1,802.00
MRU OMS 420 High Temperature Probes
MRU OMS 420 High Temperature Probes
Only for use with OMS420HT model, or use at very high temperature combustion sites.
Starting at $1,977.00
MRU 86132 Compressed Air Kit
MRU 86132 Compressed Air Kit
Compressed air kit, for air purge using compressed air system.
$1,986.00
MRU 65684 CO2 NDIR Bench
MRU 65684 CO2 NDIR Bench
CO2 analysis using a non-dispersive infrared sensor with 0 to 20% measuring range with an overload of 40%.
$2,001.00
MRU 63320 High Temperature Probe
MRU 63320 High Temperature Probe
Measures up to 3000°F (1700°C) and has a 40 x 0.4 inch (1000 x 10 mm) ceramic tube.
$2,067.00
MRU 65648 CO2 / CxHy Infrared Module
MRU 65648 CO2 / CxHy Infrared Module
Dual gas NDIR CO2 / CxHy Infrared Module.
$2,099.00
MRU 65971 Additional Safety Options
MRU 65971 Additional Safety Options
LEL gas detector with system alarm in case of inside cabinet leakage, additional safety precautions.
$2,099.00
MRU 65128 NDIR Bench for CH4
MRU 65128 NDIR Bench for CH4
NDIR bench for CH4, CO2 analysis, 0 to 100% / 0 to 100%.
$2,207.00
MRU 61414 COe SENSOR
MRU 61414 COe SENSOR
COe sensor for measurement of combustibles (equivalent CO) up to 1000ppm by using special heated solid electrolyte sensor.
$2,883.00
MRU Heated Blanket
MRU Heated Blanket
External wrap for SWG 100 BioGas.
$2,995.00
MRU PU420 Pneumatic Auto Calibration
MRU PU420 Pneumatic Auto Calibration
For automatic calibration using permanently attached calibration gas cylinder.
$3,129.00
MRU 951002 NDIR
MRU 951002 NDIR
For biogas, biomethane or coal seam gas.
Starting at $3,158.00
MRU Instruments 12720 Triple Gas Infrared Module
MRU Instruments 12720 Triple Gas Infrared Module
Triple gas NDIR, CO / CO2 / CxHy as CH4 Infrared Module.
$3,585.00
MRU Instruments 12815 Triple Gas Infrared Module
MRU Instruments 12815 Triple Gas Infrared Module
Triple gas NDIR, CO / CO2 / CxHy as C3H8 Infrared Module.
$3,585.00
MRU 61558F / 61558S Gas Sampling Probe
MRU 61558F / 61558S Gas Sampling Probe
Gas sampling probe model HD, for flue gas with flying ash dust.
Starting at $3,601.00
MRU Vario Luxx 3-Gas NDIR Bench
MRU Vario Luxx 3-Gas NDIR Bench
Non-dispersive infrared sensor for CO, CO2, and CxHy analysis.
Starting at $4,514.00
MRU 61557F / 61557S Gas Sampling Probe
MRU 61557F / 61557S Gas Sampling Probe
Gas sampling probe model HD, for flue gas with flying ash dust.
Starting at $4,741.00
MRU On-Site Service
MRU On-Site Service
One-day, on-site field servicing for the SWG 100 series analyzers and SWG 200 monitor.
Starting at $5,000.00
MRU 86101 / 86102 Air Purging Blower
MRU 86101 / 86102 Air Purging Blower
Single phase 110 / 220 VAC motor, high capacity 40m3/h, for use with the DM 401.
Starting at $6,505.00
MRU 11744 O2 Analysis
MRU 11744 O2 Analysis
Paramagnetic cell, 0 to 25%.
$10,663.00