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Calibration tips STEP 1: Turn on, Clean the electrode in distill water STEP 2: Immerse the electrode in pH 6.86 standard buffer solution STEP 3: Press the "CAL" button. Wait until the display digital is 6.86pH and steady STEP 4: Clean the electrode in distill water and dry it, immerse the electrode in Ph 4.00 standard buffer solution STEP 5: Repeat like PH 6.86 calibaration Specifications: PH Meter Specifications: Measure Range : 0.00 - 14.00 pH Resolution : 0.01 pH Accuracy : ± 0.01 pH Automatic Temperature Compensation : 0 - 60 ℃ / 32 - 140 ℉ Calibration : Two Points Automatic Calibration Button Button battery: 2 x 1.5V LR44 batteries Dimension:155mm*31mm*18mm Weight:50g TDS EC Temperature Meter Specifications: Button battery: 1 x 3V CR2032 Lock function - makes it easy to read and record, press HOLD button then remove from test solution. 4 Display modes: press SHIFT button: TDS - ppm & °C, EC - µs/cm & °C, TDS - ppm & °F, EC - µs/cm & °F. 5 minute Auto Shut Off feature, so battery won't run down. Measurement Range: Conductivity: 0 - 9990 µs/cm TDS: 0 - 9990 ppm (parts per million) Degrees Celsius: 0.1 - 80.0°C, Fahrenheit: 32.0 - 176.0°F Accuracy: ± 2% Net weight: 55g Size: 154 x 30 x 14 mm Tips:TDS = Total Dissolved Solids, which is any salt, metal or mineral in the water. Package Includes: 1 x PH Meter 1 x TDS EC Temperature Meter 2 x Calibration packets 1 x User's manual Note: Clean the electrode with distilled water every time before and after use Be careful with the glass probe since it may be a little fragile when you use. Dry the meter before capping it again. Need to recalibrate the meter if open or replace the battery Avoid soaking test leads into the water. Avoid high temperature and direct sunlight.
J**Z
Great value, both meters work well
Nice pair of meters. I keep a planted aquarium with CO2 injection and need to keep track of my pH. I also keep an eye on total dissolved solids to help pace my water changes. Both of these meters do what they say they do. The pH meter comes with powders to mix calibration solutions with, but I have a 7.0 pH solution that I used to calibrate my old pH tester that stopped working. When I got this pH meter, I checked my tap water and it read about 7.42. Then I checked my calibration solution and it was 7.00, dead on! I went through the 2 point calibration in the instructions just to make sure the calibration was linear and it was. So overall, this meter came calibrated and worked great.The TDS meter seems to work well, too. I have an RO filter that adds some minerals back in for drinking water and that read 20ppm, which is what the manufacturer of the filter says I should get. My tap water was over 100, so my filter is working.I'm pleased with both of these meters and definitely think they are worth the price for aquarium keepers, swimming pool maintenance, pond maintenance, or people who are curious about their water.
L**Y
Pretty good little meters
Pretty good little meters. I use them to check my water for homebrewing beer. Seem sturdy enough and fairly accurate.
C**E
Five Stars
works well
J**Z
One Star
Doesn’t read exactly.A few points off.
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منذ 5 أيام
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