GuDoQi 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 Wat

Features: Applied to water treatment industry, drinking water industry, family, field operation as drinking water quality inspection tools TDS Meter: Measures total dissolved solids such as minerals, salinity, metals, cations or anions dissolved in water EC Meter: Measures the electrical conductivity in a solution, applied in hydroponics, aquaculture and freshwater systems to monitor the amount of nutrients, salts, chlorine levels or other impurities in the water PH Meter: Testing the PH of tap water, bottled water, aquarium water, pond water and various other liquids, practical tool for home and laboratory PH Meter Specifications: Measure Range : 0.00 - 14.00 pH Resolution : 0.01 pH Accuracy : 0.01 pH Automatic Temperature Compensation : 0 - 60C / 32 - 140F Calibration : Two Points Automatic Calibration Button Button battery: 2 x 1.5V LR44(Battery included) Dimension:6.10*1.22*0.71inch Weight:50g / 0.11lb TDS EC Temperature Meter Specifications: TDS Range: 0 ~ 9990ppm EC Range: 0 ~ 9990 us/cm Accuracy: 2% Size: 15.4*3*1.4 cm / 6.06*1.81*0.55inch Battery: 3V CR2032(Battery included) Item Material: Plastic Shell Case Material: Synthetic Leather Color: White Weight:59g / 0.13 PH Meter Calibration: Open the calibration powder and mixed with 250 ml of distilled water or pure water. Immerse the pH electrode in a mixed phosphate standard buffer at pH 6.86 and shake gently Press CAL button, then release the button. it will automatically calibrate until displayed value as pH 6.9 standard and Flashing As above mentioned, if put the PH meter in a standard buffer solution of potassium bicarbonate and acid pH 4.01around two minutes.It will be calibrated to pH 4.01 standard. Package including: 1 x PH Meter 1 x TDS EC Temperature Meter 1 xUser manual