Plug in Voltage Meter, Eversame AC 80-300V LCD Digital RV Voltage Meter, AC 110 220V Voltage Panel Power Volt Test Monitor Gauge Meter for Household Plug into Outlet to Measure Voltage (3 Pack)

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【Easy to Read & Use】The meter equipped with big LCD display, which can actively shows the voltage coming through a circuit from line voltage between 80-300-volts. Only need to glance over the tester and you will know the real-time voltage even in a distance, set you free from complicated multi meter. Plug design can easily connect to the switch plug or any other kind of switch plug, without any complex operation, you can install in anywhere you need. 【Good Assistant to Your RV Trip】 Are you still worry insufficient power supply to your mobile home or trailer will damage your powered accessories? Are you want to know the voltage level from campground post and generator in any time? Are you want to keep the devices vitals alive and save money from expensive repairs to sensitive equipment? Good and inexpensive AC voltage tester can help you to prevent the damage from low voltage, make your RV journey more comfortable. 【Advanced Capability】 Smart chip can immediately detect and measure current voltage between AC80-300V, while big built-in premium LCD digital display shows the real-time voltage to you. Soft blue backlight is good to be a night light and a simple electrical test pen, while enabling you to view the data even in dim atmosphere. 【Wide Measuring Range & Low Consumption】 This outlet voltage meter measuring range is AC 80-300V), but with the consumption is less than 1W (about every 1200 hours consume 1 kilowatt-hour). 2 Prongs Flat US Plug with Compact Sizes Design is ideally applicable to RV/Motorhome/Travel Trailer/Camper Van, RV parks, generator, solar cell, solar generator or any place you need to know AC voltage, save your lost of damage in too high or too low voltage. 【Adjustable Potentiometer】 There’s an Interior Potentiometer for accuracy adjustment. Just use screwdriver to open the outer covering and adjust the potentiometer with small size screw driver. Adjust potentiometer in counter-clockwise when it’s excessive voltage, but adjust in clockwise while voltage is too low.