PH Meter TDS Meter Combo, Pool Water Test Kit, PH Tester Digital, PPM Meter, 0.01 Resolution TDS PH EC Temperature 4 in 1 Set for Drinking Water, Hydroponics, RO System, Aquarium, Swimming

PH & TDS Meter combo?PH TDS Meter PH Meter TDS Meter Combo, Pool Water Test Kit, PH Tester Digital, PPM Meter PH & TDS meters all are accurate, reliable and easy to use Digital pH meter works for testing water's pH, 3-in-1 TDS meter works for testing water's EC, TDS and temperature They are used for testing liquid's quality, such as drinking water, hydroponics, aquaculture, RO system, aquariums, swimming pools, SPA and so on Please kindly note as below: PH meter's accuracy was improved, and it will take longer in testing. In calibrating, pressing CAL button after pH meter reads calibration solution stably. 3-in-1 TDS meter was calibrated by 1413 solution in producing, does not need to recalibrate. 3-in-1 TDS meter's probe is titanium alloy, doesn't suit for testing sea water? PH TDS Meter PH Meter Specifications Measure Range: 0.00 - 14.00 pH Resolution: 0.01 pH Accuracy: ± 0.01 pH Automatic temperature compensation: 0 - 60°C / 32 - 140°F Calibration: Two Points Automatic Calibration Button Battery: 2 x 1.5V LR44 (Battery included) Dimension: 15.5*3.1*1.8cm / 6.10*1.22*0.71inch Weight: 50g / 0.11lb PH TDS Meter Package including 1 x PH Meter 1 x TDS EC Temperature Meter 3 x Calibration packets 6 x Button battery TDS EC Temperature Meter Specifications 4 Display modes: Press SHIFT button: TDS - ppm & °C, EC - µs/cm & °C, TDS - ppm & °F, EC - µs/cm & °F Measurement Range: Conductivity: 0 -- 9999us/cm TDS: 0-9999ppm Accuracy: 2% Battery: 3V CR2032 (Battery included) Dimension: 15.4*3*1.4 cm / 6.06*1.81*0.55inch Weight: 59g / 0.13 PH TDS Meter Calibration of the pH meter 1. The calibration powder with 250ml of distilled water or pure water (Do not use tap water and mineral water) to open. Dip the pH electrode into a mixed phosphate standard buffer at pH 6.86 and shake gently 2. Push the CAL button, it will auto calibration until the displayed value and the standard buffer solution at pH 6.9 consistent with the ambient temperature. 3. The same as above, the electrode was inserted into pH4.01 Phosphorous stupid acid potassium bicarbonate standard buffer solution 4. About two minutes or so. The displayed value should be within the error tolerance compared to the pH value of the buffer solution