Manual calibration 

By Screwdrive                            

pH water meter

1). Measuring pH Range: 0.0 - 14.0 pH

2). Resolution: 0.1pH

3). Accuracy: ±0.1 pH (20℃), ±0.2 pH

4). Operating Temperature: 0 - 50°C (32 - 122°F)

5). Calibration: manual, 1 point

6). Item Net Weight: approx. 57g ( batteries included)

7). Dimensions: 152 x 29 x 20mm (5.984 x 1.142 x 0.591 inch)

8). Relative Humidity: <95%.

9). Life: Approx.700hours of use.

10).Power: 3 x 1.5V(AG-13 button battery)(included).