The meter has a range of 0.0 to 14.0 pH and a resolution of 0.1pH with accuracy at ±0.2pH @ 25°C. Calibration is automatic at one or two-point. The built-in probe is for the specific application listed. With an easy to change battery facility, the HI-981030 has an approximate battery life of 1000 hours of continuous use and has an auto-off feature enabled after 8 minutes or 60 minutes. Featuring a liquid crystal display, the meter weighs in at 44g and measures 51 x 157 x 21mm.