Freeze function on Waterproof pH Meter helps with low-light and confined-space measuring
Waterproof Testr 30 pH Meter provides up to ±0.01 pH accuracy displayed on large, dual-display LCD. User-replaceable, double-junction polymer electrode. Freeze and auto shutoff functions. Self-diagnostic messages and a nonvolatile memory. Has a three-point, push-button calibration and a range of -1.0 to 15.0. ATC and buffer recognition. Waterproof pH Testr 30 has a 0.01 resolution and ±0.01 pH accuracy. Provides simultaneous temperature display: 0°–50°C (32°–122°F).