HM pH Meter PH-80

The HM pH Meter PH-80 has a resolution: pH 0.1 pH, 0.00 - 14.0 pH. Its accurate to ±0.1 pH, has a hold button and auto shut-off. It has automatic calibration: auto-ranging to 4, 7 or 10 pH. The PH-80 is very reliable and long lasting. Low battery indicator. Clear cap to notice moisture (or lack of) on probe. Glass encased reference electrode - helps retain moisture. Batteries included.