PZEM-022 AC Digital Display Power Monitor Meter Voltmeter Ammeter Frequency Current Voltage Facto

PZEM-022 AC Digital Display Power Monitor Meter Voltmeter Ammeter Frequency Current Voltage Facto

banggood Measurement & Analysis Instruments

23.99$
19.99$
Features1Electrical parameter measurement functionvoltagecurrentactive powerenergyfrequencypower factor 2Overload alarm functionover power alarm thresholdbacklight and power flashing to alarm3Power alarm threshold preset functioncan set power alarm threshold4The energy can be reset use the key5Store data when power off 6Large screen LCD 7Backlight function 8Key FunctionBacklight controlShort press the key to turn on or off the backlightthe backlight has memory functionit can store the on or off state when power off Reset energyStep1Long press the key for 5 seconds until the energy value flashthen release the key Step2Short press the key againthen the energy value is cleared and exit the reset flashing state Step3If there is no operation on the key within 5 secondsit means the energy value is not cleared and will exit the reset state Set power alarm threshold Step1Long press the key until the LCD screen display SET CLrthen release the key to enter the setting stateStep2Power window display the current power alarm value and the last digit begin to flashthen you can short press to plus 1when there is no operating over 3 secondsit will switch the digit position automaticallythe setting method is as same as the above Step3After finish the settinglong press the key over 5 seconds will store automatically and exitthe range of active power threshold is 0 0 2 5kWit can display six parameters at the same ti