ECscan10M pocket conductivity tester is suitable for measuring the conductivity of moderate concentration liquids, e.g., spring water, tap water, etc. Features: Standard platinum sensor provides fast and reliable measurements. Single point calibration allows user to uses customized calibration     solution. Automatic Temperature Compensation ensures high accuracy of     measurements. Hold function freezes the current displayed value for easy viewing     and recording. Auto-power off feature helps you effectively conserve battery life. Replaceable electrode reduces maintenance and replacement cost. Waterproof feature to ensures complete protection in harsh     environments.