ORP Calibration Powder Buffer Powder ORP Tester Measuring Calibration Solution 256MV white

This product is a one-time-use product and cannot be stored. It is recommended that you purchase more at one time as needed to get a greater discount. It is recommended to use calibration once a week Instruction: 1.Add the contect of the sachet into a container with 50ml(1.69oz) of distilled water at the temperature of 25c(77f) 2.Mark the container with the ORP level powder used for reference and keep it from children. Colour:white Material:ORP Package Contents: 1 * ORP Calibration Powder Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.