#ph temp monitor

pH Monitor Water Quality Monitor pH & Temp Meter with ATC and Automatic Calibration Function, pH Tester for hydroponics Aquarium Water

2 in 1 Temperature pH Monitor Meter Tester Sensor Test Kit 0 14 pH Measure Automatic Calibration BNC Electrode Probe for Hydroponics Aquarium Lab Testing Drinking Water Food pH of Saltwater/seawater