Hanna Instruments pHep 5 pH-Temperature Tester

This durable, waterproof tester measures pH and temperature (in °C or °F). The tester is designed to float and features automatic temperature compensation, automatic calibration, a HOLD function, efficient two-button operation, and a stability indicator. Other features include automatic shut-off to conserve battery power, display of battery percentage during startup, and a Battery Error Prevention System. Includes tester, pH electrode, electrode removal tool, batteries, and instructions.