YSIŽ EcoSenseŽ ORP Pen

Pen-style unit with memory for 50 data sets.

An easy-to-use graphic interface and simple one-hand operation make getting accurate results easy! Use it to economically measure absolute and relative mV and temperature. Hold feature locks readings on the display, while a 50-set memory stores absolute and relative ORP, temperature, date and time. Electrodes are replaceable and the Meter has an IP-67 waterproof housing. Requires four LR44 alkaline batteries, included.