Waterproof pH Meter, PH60, extech
The Extech PH60 Waterproof pH Meter With Temperature has a pH range of 0 to 14pH and a temperature range of 32 to 122°F (0 to 50°C). It has a dual LCD screen that displays both pH and temperature readings. This meter has automatic temperature compensation, low battery indication and auto power off. It is easy to calibrate a single CAL key with the automatic pH buffer recognition (4, 7, and 10pH). 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 Extech PH60 Waterproof pH Meter comes complete with the built in electrode, a sensor cap, an inner pH electrode protection cap, and four LR44 button batteries.
Features
 - pH range: 0 to to 14pH 
 - Temperature range: 32 to 122°F (0 to 50°C) 
 - Automatic Temperature Compensation 
 - Dual LCD displays both pH and Temperature readings 
 - Easy to calibrate single CAL key with automatic pH buffer recognition (4, 7, and 10pH) 
 - Choice of 3 point calibration for better accuracy 
 - Data hold freezes reading on display 
 - Low battery indicator, Auto power off 
 - Complete with built in electrode, sensor cap, inner pH electrode protection cap, and 4 LR44 button batteries