Easy to use, rugged pH pen with 2 to 12pH range

The Extech PH50 Waterproof pH Pen has a pH range of 2 to 12pH with a LCD display that shows the pH readings. It makes it easy to calibrate a single CAL key with the automatic pH buffer recognition (4, 7, and 10pH). The user has a choice of a 3 point calibration for better accuracy. This pen features the data hold which freezes the readings on the display and a low battery indicator. Product also features auto power off to help conserve the battery life. The Extech PH50 Waterproof pH Pen comes complete with a built in electrode, a sensor cap, an inner pH electrode protection cap, and four LR44 button batteries.

• 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

Specifications            Model PH50
pH                               2.0 to 12.0pH
Temperature             —
Resolution                 0.1pH, 0.1°
Accuracy                    ±0.3pH
Power                        Four LR44 button batteries
Dimension                6 x 1.5 x 0.9" (152 x 37 x 24
Weight                      2.3oz (65g)

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