HANNA HI98191 Portable pH/ ORP/ ISE Meter
- IP67 rated waterproof, rugged enclosure
- CAL Check™ – alerts users to problems during calibration including dirty/broken electrodes, contaminated buffer and overall probe condition.
- Automatic or manual temperature compensation – pH sensors incorporate a built-in temperature sensor.
- Calibration – up to a five-point calibration with seven standard buffers and five custom buffers available.
- Intuitive keypad – most of the available options such as GLP information, help, range, calibration and backlight have a dedicated button
- Approximately 200 hour battery life powered by (4) 1.5V AA batteries