Extech PH60

The Extech PH60 Waterproof pH Pen With Temperature has a pH range of 0 pH to 14 pH, as well as a temperature range of 0°C to 50°C (32°F to 122°F). It has a dual LCD screen that displays both pH and temperature readings. This meter has automatic temperature compensation, low battery indication, and an auto power off function. It is easy to calibrate a single CAL key with the automatic pH buffer recognition (4 pH, 7 pH, and 10 pH). The user has a choice of 3 point calibration for better accuracy. Also, this meter has a data hold feature that freezes the readings on the display. The PH60 comes complete with the built in electrode, sensor cap, inner pH electrode protection cap, and four LR44 button batteries.