4pcs Flat US Plug AC 80-300V Voltage Measuring Monitor, LCD Digital Voltmeter, AC 110V 220V Voltage Panel Power Line Volt Test Monitor for Household Plug into Outlet to Measure Voltage

Parameters: Measuring Accuracy: +/-1.5%, +/- 2 word Measuring Range: AC 80-300V (110V, 220V) Consume Power: Less than 1W(about every 1200hours consume 1 kilowatt-hour) Plug Style: US Plug Number of Digits: 3 Digits Potentiometer Adjusting Method: Please use the Phillips screwdriver to open the outer case of the voltmeter Then adjust the potentiometer with small size Phillips screwdriver If the displayed voltage is too high, please adjust potentiometer counter-clockwise If the displayed voltage is too low, please adjust potentiometer clockwise Applications: The monitor can be widely applied in AC 80-300V mains measurement, such as office, factory, laboratory, household and so on. You can use this item in RV as a way to view voltage to prevent issues with appliances. You can use this item to monitor the voltage of other appliances; when this volt gauge displays too high or too low voltage, you can selectively turn off your appliances or equipments so as to prolong the life of your appliances.

• ★Measuring Range: AC 80 - 300V (110V, 220V); Measuring Accuracy: +/-1.5%, +/- 2 Word; Consume Power: Less than 1W(About Every 1200 Hours Consume 1 Kowatt-Hour)
• 【Adjustable】: There’s An Interior Potentiometer for Accuracy Adjustment. Just Use Screwdriver to Open the Outer Coving and Adjust the Potentiometer in Counter-Clockwise when it’s Excessive Voltage, but if Display Voltage is Too Low, Adjust Potentiometer in Clockwise.
• 【Flat Plug】: Designed as a flat plug, this volt tester can immediately detect and measure the current voltage by connecting to the switch plug or other kind of wall socket, simple and easy to use, it allows you to check on power health of devices for preventing the low voltage damage to your valuable household appliances.
• 【LCD Display】: Built in Premium LCD digital display with blue backlight, this voltage monitor is convenient for you to view the data on it even in dim night. Moreover, it can be used as a voltage meter as well as a night light.
• 【Applications】: Applicable to measuring the AC voltage in family, office space, industrial and mining enterprises, etc.