Professional Pen Type PH Meter Portable Water Quality Tester Acidometer for Aquarium Acidimeter Acidity PH818

The device is an intelligent precision measuring instrument, designed and manufactured with precision components and sensors, high sensitivity, high precision, stable work at different temperatures, small size, easy to store and hand-held, can measure the PH value and perform measuring.PH meter is widely used in industry, electric power and agriculture, , food industry, etc.Before using this equipment, please read this instruction carefully to obtain correct readings, which is very important.1. Use the data retention function to test the pH and temperature of the solution/water.2. Pocket size, light and portable, switchable backlight and large LCD display, clear reading.3. The replaceable pH sensor probe-the electrode probe can be replaced with a in design for quick and easy replacement.4. ATC function (automatic temperature compensation), automatic calibration and IP65 fully waterproof design.5. Used in water sources, soilless culture, aquariums, hydroponics, laboratories, spas, swimming pools and other water systems.specificationPH measurement range: 0.00-14.00pHBasic pH measurement error: ± 0.05pHInstrument repeatability: ± 0.03Solvent temperature compensation range: 0-70°CRepeatability: ± 0.01Measured solvent temperature: 0-60°CPower supply: 1.5V AAA batteries * 2 (not included)Showcase: Large LCD segment displayOperating temperature range: 0-50°CWorking humidity range: ≤80%RHPackage: 1 * PH meterHow to calibrate the equipment correctly bag of powder is dissolved in 250ml of purified water. When correction is needed, take some solution, and the remaining solution can be sealed and stored for 1 monthstep 11. Turn on the machine, put the PH818 in water, clean it and wipe it with a cloth. Press and hold the calibration button, put the machine into the adjusted PH4.00 solution, stir for a few seconds, and then stand for a few seconds until the machine screen appears. "PR5"Step 22. When the machine number changes to 6.86, take out the machine, clean it with water, wipe it with a cloth, put it into the adjusted PH6.86 solution, stir for a few seconds, and then let it stand for a few seconds. Seconds until "PR5" appears on the machine screenthird step3. When the machine number changes to 9.18, take out the machine, clean it with water, wipe it with a cloth, put it into the adjusted PH9.18 solution, stir for a few seconds, and then let it stand for a few seconds. Seconds until "PR5" appears on the machine screenthe fourth step4. The machine is restored to the power-on state and the calibration is completed.

• 1. Use the data retention function to test the pH and temperature of the solution/water.
• 2. Pocket size, light and portable, switchable backlight and large LCD display, clear reading.
• 3. The replaceable pH sensor probe-the electrode probe can be replaced with a in design for quick and easy replacement.
• 4. ATC function (automatic temperature compensation), automatic calibration and IP65 fully waterproof design.
• 5. Used in water sources, soilless culture, aquariums, hydroponics, laboratories, spas, swimming pools and other water systems.
• No power is needed, and the pH of the soil can be measured. Easy to use.