Bentop Pen type ORP Meter ORP-2069-1999mV~1999mV,LCD with green backlight

Description

Display: Green backlight display Measure Range : -1999 mV to 1999 mV Accuracy : +-5 mV Resolution : 1 mV LCD Display : 4 Digits Operating Temperature : 0 - 50C Calibration : By mini screwdriver (included) Calibration Method : 1,Switch on the ORP Meter , and immerse the electrode in the distilled water for few hours . 2, Immerse the electrode in 256mV calibration solution (4.01 calibration solution of quinhydrone reagent), stir the meter gently. 3, Wait till the reading is stabilized , and adjust the reading to 265mV by pressing the potentiometer with the screwdriver. 4, Rinse the electrode with distilled water . NOTE: Keep the electrode immersed in Potassium Chloride Solution for few hours for every 15days can maintain the accurace of the ORP Meter.