Ruolan Lab Ph Meter for Water Hydroponics,TDS Meter Digital Water Tester,Ph Tester Digital,PPM Meter,Ph Pen Test: Industrial & Scientific

Description

See more product details Instructions for use of PH calibration powder: Calibration powder: pH standard solid substance. It can be used after adding water. Suitable for the calibration of any type of ph meter. Each package can prepare 250ML standard solution. (Be sure to add water according to the required ratio, otherwise it will affect the accuracy of the calibration and increase the error) Includes 3 in 1 TDS & EC & temperature and digital LCD pH meter. Using Ruolan' s PH meter&TDS, you can test pH, TDS and EC (conductivity), water quality and temperature to ensure that your drinking water or other water is safe and healthy PH meter has been calibrated before delivery, the buyer does not need to re-calibrate after receiving the goods! In the following cases, the PH meter must be re-calibrated: 1. Has been used for a long time after calibration; 2. Special electrode use Frequently; 3. The measurement accuracy requirements are relatively high. The PH meter is placed in the liquid test until the liquid covers the immersion line, if conditions permit, the solution may be immersed slightly above the immersion line, but be careful not to immerse the maximum immersion line. Stir gently until the display value is stable, then read the display value. After use, clean the electrode with water to reduce contamination. The electrode can be serviced by dropping a few drops of saturated KCl solution into the protective sleeve. 1XTDS meter 1XPH meter 6X calibration powder 2X gift box 2X instruction manual

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