High-performance S40 wireless Bluetooth water Hardness Tester , suitable for Android smartphones or tablets, 5-point key calibration, 12 functional parameters can be customized in the setting menu, measurement accuracy: 1% FS.
• High-performance bluetooth water Hardness Tester, equipped with British original electrodes.
• 2 to 5 point calibration, including 5 concentration calibration points optional.
• Selectable water hardness units - German degrees (°dH), English degrees (°e), French degrees (°fH), gpg, mmol/L, mg/L.
• Manual temperature compensation to eliminate measurement errors caused by temperature deviation.
• Automatic end point locking, keeping stable readings for easy viewing and recording.

• Timed interval readings, sending measurement data to memory or printer.
• Limit alarm, automatically warns if the measured value exceeds the set range.
• Calibration Due Reminder, reminding users to calibrate the meter regularly.
• Calibration report showing date, time, calibration point and slope.
• Password protection to prevent unauthorized calibration and setup.
• Multi-parameter measurement, can connect Bluetooth conductivity and Dissolved Oxygen Meter to the device and display the measured value.
• Reset function, automatically restores the instrument to factory default settings.
S10: Meter, pH standard buffer, carrying case
S20: Meter, solution storage bottle, carrying case
S30: Measuring instrument, ion selective electrode (made in USA), standard solution (100 /1000ppm), ionic strength adjuster, carrying case
S40: measuring instrument, water hardness electrode (made in UK), standard solution (0.01/0.1mol/L), ionic strength adjuster, carrying case
S50: Meter, conductivity standard solution, carrying case
S60: Meter, Dissolved Oxygen Electrode Made in USA, ( ) Electrolyte, Electrode Diaphragm Cap, Carrying Case
