1. Measurement Capabilities: The PH-200 Is Designed For Various Water Testing Applications, Measuring PH Levels From 0 To 14 And Temperatures Ranging From 0 To 80 Degrees Celsius Or 32 To 176 Degrees Fahrenheit.

1. Measurement Capabilities: The PH-80 Is A PH HydroTester That Measures PH Levels From 0 To 14 And Temperatures Ranging From 1 To 55 Degrees Celsius Or 32 To 130 Degrees Fahrenheit.

1. Measurement Capabilities: The R-Tek RT - 4 IN 1 Water Testing Meter Simultaneously Measures Four Vital Liquid Quality Parameters: PH From 0.01 To 14.00, Total Dissolved Solids (TDS) From 0 To 10000 Ppm, Electrical Conductivity (EC) From 0 To 10000 µS/Cm, And Temperature From 0 To 60 Degrees Celsius Or 32 To 140 Degrees Fahrenheit.