Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit

Accuracy: 0.01 ph; range: -2.00 to 16.00 ph
Easy 1-3 points auto calibration; auto temp. Compensation (atc) ensures accuracy in various temperatures (32-122˚c);
Auto recognition of stable values (optional auto hold function available) improves consistency so you don’t have to guess when to manually hold measurement
Large lcd with 3 backlit color (indicating 3 different modes), dual display of temp./ph, and reminders of completed calibrations and stable readings
COMPLETE KIT with READY-TO-USE calibration solutions, calibration bottles, storage solutions, AAA batteries, and a lanyard all in a premium portable carrying case