±0.1 pH accuracy Replaceable electrode Push button 3-point calibration at 4.0, 7.0, and 10.0 Automatic temperature compensation (ATC) Waterproof pH PockeTester 20 ±0.01 pH accuracy Replaceable electrode Push button 3-point calibration at 4.0,
酸度計廠家，pHTestr20 酸度計技術參數：
| Model: | pH 10 | pH 20 |
| Code: | 5-0103 | 5-0104 |
| Range: | 1.0 to 15.0 pH extended range | |
| Resolution: | 0.1 pH | 0.01 pH |
| Accuracy: | ±0.1 pH | ±0.01 pH |
| Calibration: | selec up to 3 points (4.0, 7.0, 10.0) | |
| Operating Temperature: | 32 to 122°F; 0 to 50°C | |
| Temperature Compensation: | Automatic (ATC) 0 to 50°C | |
| Special Functions: | On/Off or Auto-Off after 8.5 min.; HOLD; CALibrate; CONfirm | |
| Power & Battery Life: | Four 1.5 V alkaline cell batteries (supplied), 500 hours use | |
| Replacement Electrode: | 5-0097 | |
| Size (LxWxH): | 8.5"L x 2.4"W x 2.5"H (boxed) 6.5"L x 1.5" diameter (unit) | |
