PH Meter & TDS Meter Handheld EC&TDS Meter 0-9990PPM Water Quality Tester LCD Water Purity PPM Aquarium Filter for Pool Water

Good luck with your favorite purchasesPH Meter & TDS Meter Handheld EC&TDS Meter 0-9990PPM Water Quality Tester LCD Water Purity PPM Aquarium Filter for Pool Water Pls note：All not included the Batteris! PH Tester Display: LCD Digital Accuracy: 0.01 Resolution: 0.01 Operating Temperature: 0~60°C Measuring Range: 0.00~14.00 Power source: 2 x 1.5 V(LR44 Button Cell)(not included) Operation: Step 1.Remove protective cap. Step 2.First rinse the electrode with distilled water and suck it with filter paper. Step 3.Turn the meter on by pressing “ON/OFF” key. Step 4.Immerse the pH meter electrode in the solution to be tested (should not be over the immersion line). Step 5.Stir gently and wait around 30 seconds till the reading stabilizes. Step 6.After finishing, clear the electrode with pure water, turn the meter off by pressing “ON/OFF” key. Step 7.Always replace the protective cap after use. Calibration： 1.Turn on PH meter 2.Disolve each buffer solution in 250ML of distilled water 3.Immerse the electrode into the PH 6.86 solution,(under the temperature of 25) 4.Press the “CAL”(calibration)button for 5 seconds and release -Display will start flashing 6.86 -Wait until the display stops flashing. Rinse the electrode with distilled water and dry it with filter paper. 5. Immerse the electrode in PH 4.00 solution, -Press“CAL”button for 5 seconds,then press and release immediately second time -Reading will start flashing 4.00 -Wait until display stops flashing Rinse and dry the electrode with distilled water as before. 6.Place the meter back to the buffer solution to test calibration.If incorrect,please repeat the calibration 7.If approximate PH of your test solution is known to be above 7.0,calibrate the meter using 6.86 and 9.18 solution. To do this,please follow the calibration chart,The third step is the calibration method for 9.18 point. EC Tester 1. Lock function: makes it easy to read and record, press HOLD button then remove from test solution. 2. 4 Display modes: press SHIFT button: TDS - ppm & °C, EC - μs/cm & °C, TDS - ppm & °F, EC - μs/cm & °F. 3. 5 minute Auto Shut Off feature, so battery won't run down. 4. Measurement Range: Conductivity: 0 - 9999 μs/cm TDS: 0 - 9999 ppm (parts per million) Degrees Celsius: 0.1 - 80.0°C Fahrenheit: 32.0 - 176.0°F 5. Accuracy: ± 2% 6. Net weight: 55g 7.Supply voltage:CR2032 battery, DC3V; 230mAh.(Not included) How to use ▼ STEP 1: Remove the electrode protective cap before use ▼ STEP 2:Press the ON/OFF button, and immerse the meter into the solution. (The solution should not over the immersion line) ▼ STEP 3: After the numerical display is steady, press the HOLD button and take it out of the solution for checking the result ▼ STEP 4: Wipe clean the electrode after using, turn off the meter and replace the protective cap