Water Quality Products – Thermometer

PHM-224_PH 3-in-1 ORP Redox PH Temperature Combo Meter Tester w/ EXTRA Electrode, Pen Type ATC -1999~1999mV 0.00-14.00pH 0~50°C, Water Quality Aquarium Tank Swimming Pool Lab Spa Hydroponics

ECM-226 3-in-1 Conductivity EC & pH & Temperature Meter Multi-parameter Tester Digital Pen ATC, Water Quality Test Analyze Calibration Kit, 0.01mS/cm Resolution, Aquarium Hydroponics Tank Pool Lab Spa

PHM-245 PH & Temperature 2-in-1 Continuous Monitor Meter w/ Backlight Replaceable Electrode, Dual Display 0.00~14.00pH °C/ °F Water Quality Monitoring Kit, for Aquariums Hydroponics Pools Tanks Spa

837-2_SOL Pen Type Salinity & Temperature Meter ATC w/ Calibration Solution Set ppm / ppt / % / S.G. 4 Units, Salt NaCl Water Quality Tester for Saltwater Aquarium Pond Hydroponics Food Test

837-1_SOL Pen Type Salinity & Temperature Meter ATC NaCl w/ Calibration Solution Set, Salt Water Quality Tester 70.0ppt for Saltwater Aquarium Hydroponics Food Pond Digital Measurement Tool