Bante 901P portable multi-parameter meter used for measuring the pH, Conductivity and TDS of liquids. General Features: Automatic Temperature Compensation (ATC) ensures highly accurate     measurements over the entire range. Calibration due reminder prompts you to calibrate the meter regularly. Automatic endpoint function freezes the stable measured values for     easy reading and recording data. Manual temperature calibration provides accurate temperature value. Help message as a operational guide to helps you understand how     to use meter. Setup menu lets user customizes buffer standards, calibration points,     stability conditions, resolution, temperature units, date and time to     meet measurement requirements. Reset function can resumes all settings to factory default values. Expanded memory stores and recalls up to 500 readings. Built-in real-time clock stamps stored data to meets GLP standards. Stored data can be transferred into computer via USB communication     interface.

TDSscan10M pocket TDS tester is suitable for measuring the Total Dissolved Solids of moderate concentration liquids. By measuring the TDS values of liquid, you can determine the water purity, or mineral levels in the water. Features: Standard platinum sensor provides fast and reliable measurements. Single point calibration allows user to uses customized calibration     solution. Adjustable TDS conversion factors for different liquids. 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.