Thermo Scientific Orion Star A122 portable conductivity meter combines simplicity with accuracy. Large informative display shows conductivity or TDSreadings, temperature, meter mode, calibration information, and battery life. Simple button layout and on-screen messages help with calibration and setup menu choices. Waterproof and protected to take anywhere with an IP67-rated housing.

Auto-Read™ function locks in stable reading and nonvolatile memory holds up to 50 data points. Four AA batteries (included) provide over 2000 hours of operation. Universal power adapter sold separately to run meter on AC power.

Includes: four AA batteries