1.LCD indicates both mV value and temp. 2.Data hold function for freezing the desired value. 3.Water proof. 4.Easy to change

Features:

0 mV and 500 mV calibration ensure the best linearity and accuracy .

Less than 80% RH

Microcomputer circuit, intelligent function, high accuracy

Power supply by 1.5 V battery (LR44 ) x 4 PCs

Auto calibration for 0 mV, 500mV

Build in temperature sensor, ATC (auto temperature compensation).

Available for wide applications, such as aquarium, beverage, fish hatcheries, food processing, photography, laboratory, quality control, school & colleges, swimming pools, water conditions.

PT-8022 ORP meter,Pen type ORP meter