The Triplett Model PH180 Waterproof (IP57) PH Pen measures from 0 to 14 pH with 0.01pH resolution and has flat surface electrode that can measure solids, semi-solids, and liquids.It simultaneously displays pH and Temperature and has an analog bargraph for viewing trends. It features ATC (Automatic Temperature Control) that compensates for temperature changes, 1-, 2-, or 3-point calibration, a CAL reminder after 15 on/off cycles, and a RENEW warning when the probe needs cleaning or replacement. Auto power off (after 10 minutes) with disable conserves battery life. Includes meter with flat surface pH probe with protective cap, (4) CR2032 batteries, cup with cap, and neckstrap. PH180 pH Range 0 to 14pH Accuracy ±0.01pH Temperature Range 32 to 194°F (0 to 90°C) Accuracy ±1.8°F/1°C Calibration 1-, 2- or 3-point Memory 25 readings Power (4) CR2032 Batteries Dimensions 7.8 x 1.5 x 1.5″ (198 x 38 x 38mm) Weight 3.5oz (100g)
