Automatic calibration, automatic or manual temperature compensation.

Characteristics
Microprocessor technology.
Automatic calibration, automatic or manual temperature compensation.
Measurement results can be stored, deleted, searched and printed. It can store at most 250 sets of measurement data.
With low voltage display, automatic switching off, protection from electricity cutting off. With 4 pieces of No.5 batteries.
With RS-232 interface.

Specifications
1. Measurement range pH (0.00-14.00)pH  mV:(-1800 ?C1800 )mV, temperature: 0.0-60.0 °C
2. Resolution pH: 0.01 pH,  mV: 0.1mV; temperature: 0.1°C.  
3. Accuracy pH: ±0.01pH,  mV: ±0.1 % FS, temperature: ±0.3 °C
4. The temperature of the measured solution: 0-60 °C