The MW101 requires manual temperature correction

Maintains Water Quality - Restores system performance to like-new condition

The recessed screen design adds an extra layer of protection against scratches and impacts during transport and storage

Auto shut off after 8 minutes of non-use

Hanna Instruments Portable Waterproof pH/EC/TDS Meter (Low Range) - HI991300 HM-500 pH Replacement Probe The MW101 requires manual temperatureDesigned to bring simplicity to environmental testing, the HI991300 pH EC TDS Meter is designed specifically for use in manufacturing and environmental testing protocols. The specialized electrode combines 3 sensors in a single rugged probe body featuring a polypropylene body, integrated temperature sensor, and cloth junction. 3 in 1 probe measures pH, EC TDS, and temperature. Comes with all the necessary solutions and batteries everything you need to