Showing 1 to 50 of 149 products. 123
YSI Pro10 pH / ORP Meter
Portable, user replaceable sensors and cables, 50 data set memory, IP67 protection
$475.00
YSI Professional Plus Multiparameter Meter
The toughest, smartest and most versatile water quality meter available
$1,175.00
$1,010.50
YSI 556 Multiparameter System
Hand-held meter simultaneously measures dissolved oxygen, pH, conductivity, temperature and ORP
Starting at
$1,875.00
$1,650.00
YSI 550A Dissolved Oxygen Meter
Handheld DO meter with true field performance and improved functionality
Starting at
$895.00
$769.70
In Stock
YSI 55 Dissolved Oxygen Meter
Field-proven handheld water quality meter for dissolved oxygen and temperature
Starting at
$825.00
$726.00
YSI Pro20 Dissolved Oxygen Meter
Rugged, reliable DO meter that is easy to operate while featuring user-replaceable sensors and cables
$560.00
$481.60
YSI ProODO Dissolved Oxygen Meter
Handheld, luminescent based dissolved oxygen meter for any field application
$695.00
$611.60
YSI EcoSense DO200A Dissolved Oxygen / Temperature Meter
Accurate, economical, handheld measurements, IP67 waterproof housing
Starting at
$280.00
$246.40
YSI pH100A EcoSense pH100A pH/ORP Meter
Accurate, economical, handheld, IP67 waterproof housing
Starting at
$260.00
$228.80
YSI 5000 Series Dissolved Oxygen Meters
Highly accurate, reliable advanced instrumentation for measuring dissolved oxygen
Starting at
$1,325.00
$1,166.00
YSI Pro2030 Dissolved Oxygen & Conductivity Meter
Measures dissolved oxygen, salinity, conductivity, specific conductance, TDS, barometric pressure and temperature
$755.00
$664.40
YSI EcoSense EC300A Conductivity Meter
Accurate, economical, handheld measurements, IP67 waterproof housing
Starting at
$295.00
$259.60
YSI 3100/3200 Conductivity Meters
High accuracy, ±0.1%, conductivity measurement instruments
Starting at
$895.00
$787.60
YSI EcoSense pH10 pH Tester
pH and temperature measurement in a pen-style tester with graphic display
$115.00
$101.20
YSI 9300 & 9500 Photometer
Economical photometers allow for field readings of 100+ parameters
Starting at
$1,050.00
$924.00
YSI Pro1030 Multiparameter Meter
Tough, smart and versatile pH/ORP/Conductivity/Salinity/TDS/Temperature meter designed for rugged field work
$725.00
$638.00
YSI Pro30 Conductivity Meter
Handheld field meter for conductivity, salinity, TDS and temperature
$550.00
$484.00
YSI 900 Chlorine Colorimeter
Single parameter colorimeter for total and free chlorine, ideal for laboratory and field testing
$389.00
YSI EcoSense ORP15 ORP Tester
ORP and temperature measurement in a pen-style tester with graphic display
$159.00
$139.92
YSI Pro1020 pH / ORP & DO Meter
Handheld meter that measures dissolved oxygen and temperature along with either pH or ORP (redox)
$725.00
$638.00
YSI MultiLab 4010-2 Water Quality Instrument
Two channel input for pH, ORP, optical-based DO/BOD, or conductivity, large, easy to read color display
Starting at
$1,450.00
YSI pH1200 pH/mV Meter
Simple, accurate laboratory-grade pH, mV and temperature measurements
$525.00
$462.00
YSI pHotoFlex Colorimeter
Portable Colorimeters for lab and field, calibration adjustment for selected methods, multiparameters
Starting at
$995.00
YSI MultiLab 4010-1 Water Quality Instrument
Single channel input for pH, ORP, Optical-Based DO/BOD, or conductivity, large, easy to read backlit graphic display
Starting at
$1,095.00
YSI MultiLab 4010-3 Water Quality Instrument
Three channel input for pH, ORP, Optical-Based DO/BOD, or conductivity, antibacterial keypad, large, easy to read color display
$1,875.00
YSI 1201 pH/mV Electrode
pH/mV electrode with BNC connector and 1-meter cable
$57.00
$50.16
YSI 910 COD Colorimeter
Single parameter colorimeter for COD, rugged, waterproof, multi range ideal for laboratory and field testing
$560.00
Accessories
YSI Photometer Test Kits
Reagent starter kits for the YSI 9300 and 9500 photometers
Starting at
$12.00
YSI LR44 Batteries
Replacement LR44 Batteries
$5.00
$4.40
YSI Rochelle Salt Liquid Reagent
Rochelle Salt, liquid reagent, 30 ml or 500 ml, number of tests varies with hardness concentration
Starting at
$11.00
YSI 605611 USB Cable
USB cable for connecting instrument with USB-mini B to a computer
$12.50
YSI 251416Y Hydrazine Reagent
Hydrazine, 100 mL for 50 tests, 0.004 to 0.600 mg/L
$16.00
YSI Iron Reagent
Iron, Total, Low Range, powder, pack of 100, multiple ranges
Starting at
$18.00
YSI Chlorine Reagent Powder
Chlorine, free reagent, powder, 10 mL, pack of 100 or 1000
Starting at
$19.00
YSI Chlorine Total Reagent Powder
Chlorine, total reagent, powder, 10 mL, pack of 100 or 1000, 0.02 to 2.00 mg/L
Starting at
$19.00
YSI 251392Y Primary Standard
Primary standard, 100 mL, 1.5 mg/L
$22.00
YSI 063517 Ultra Clamp
Ultra Clamp for YSI Pro Series
$25.00
YSI 480 Shoulder Strap
Convenient shoulder strap keeps your instrument close by and safe when out sampling in the field
$29.00
$25.52
YSI Sulfate Reagent
Sulfate, powder, 10 ml or 25 ml, pack of 100
Starting at
$26.00
YSI 5238 Dissolved Oxygen Probe Reconditioning Kit
400 grit sanding discs and sanding tool
$30.00
$26.40
YSI 580 Soft Carrying Case
Soft carrying case YSI EcoSense pH10 and ORP15 tester
$28.00
$24.64
YSI Phosphate Reagent
Phosphate (Orthophosphate), powder pack reagent, pack of 100
Starting at
$27.00
YSI 603069 Belt Clip
Belt Clip for Pro Series
$27.00
YSI 605978 Cable / Probe Weight
Cable / Probe Weight, 4.9 oz, stackable, add to guard as needed to increase probe weight by 4.9 oz per piece
$27.00
YSI 063507 Tripod
Tripod, Ideal in the lab or any other level surface
$30.00
YSI Nitrite Reagent
Low Range, powder, 10 ml or 25 ml, pack of 100
Starting at
$30.00
YSI 603070 Shoulder Strap
Shoulder strap for YSI Pro Series
$31.00
YSI 380 Hard Carrying Case
Hard sided carrying case for YSI EcoSense EC300 conductivity meter
$38.00
$33.44
YSI 180 Hard Carrying Case
Hard sided carrying case for YSI EcoSense pH100 meter
$38.00
$33.44
YSI COD Reagents
Low range and high range vials, Hg free option, pack of 25 or 150
Starting at
$35.00
Showing 1 to 50 of 149 products. 123