Multiparameter Meters
Apera Instruments SX731 Portable Handheld MultiParameter Meter Kit
$482
Compare at 3 stores
Bluelab Combo Meter Plus (Probe Included)
$380
Compare at 33 stores
UEi DTH35 Digital HVAC Psychrometer Thermo-Hygrometer, Portable Relative Humidity Meter, Handheld Electronic in-Duct Thermometer, Measures Wet Bulb Dry Bulb Dew Point Temperature Humidity
$92.61
Compare at 39 stores
Bluelab PENCON Conductivity Pen and Digital TDS Meter, Water Tester for Temperature and Nutrient (CF, EC, PPM 500, PPM 700), TDS Testing Kit for Hydroponic System and Indoor Plant Grow
$149.77
Compare at 99 stores
pH/EC Conductivity Meter with ATC Water Quality Tester 0.0-14.0pH /\xa00~19.99
$74.66
Compare at 5 stores
Reed Instruments R6210-NIST Heat Stress WBGT Meter
$434
Compare at 17 stores
Apera Instruments PC60 Premium 5-in-1 Waterproof pH/Conductivity/TDS/Salinity/Temp. Multi-Parameter Pocket Tester, Replaceable Probe
$170
Compare at 28 stores
Myron L 6PIIFCE Conductivity, Resistivity, TDS, pH, ORP/Free Chlorine, Temperature Meter
$1439
Compare at 44 stores
Apera Instruments SX751 pH/ORP/DO/Conductivity/TDS/Salinity/Resistivity/Portable Handheld Multiparameter Meter Kit, Silver
$997.47
Compare at 5 stores
Tech-Edge 326-KWP ISRs Tank Monitor w/Water PMP Swtch
$276.06
Compare at 11 stores
Extech EX410A Professional True RMS Multimeter with 8 Functions
$83.82
Compare at 5 stores
BlueLab Combo Meter
$351.65
Compare at 15 stores
BlueLab Combo Meter
$240
Compare at 44 stores
Bluelab Truncheon Meter
$156.48
Compare at 80 stores
Digital LCD PH Meter Pen +TDS EC Water Purity PPM Temperature Tester Tool
$12.95
Compare at 8 stores
Yewhick Smart pH EC Monitor with Controller, Hydroponic Nutrients Tester, Professional EC pH Meter, APP Online Nutrient Meter with Data Logger Function for Hydroponics System Agricultural Irrigation
$479
Compare at 36 stores
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