PH50: Waterproof pH Pen
Easy to use, rugged pH pen with 2 to 12pH range
Features:
- pH range: 2 to 12pH
- LCD displays pH eadings
- 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