aFe Power AC 80-300V LCD Digital Voltmeter US Plug

Household voltage monitor

The aFe Power AC 80-300V LCD Digital Voltmeter plugs directly into a US outlet to display real-time mains voltage. Homeowners and RV users can instantly see if voltage falls outside safe limits, helping protect appliances from damage caused by low or excessive supply. The compact meter suits residential, office and light-industrial environments where a quick visual check is preferred over a handheld multimeter. Its three-digit LCD with blue backlight remains readable in dim conditions.

Low-draw operation

The unit consumes less than 1W, averaging roughly one kilowatt-hour every 1200 hours of continuous use. Measurement accuracy is rated at 1.5% ±2 digits across the AC 80-300V range, covering both 110V and 220V nominal supplies. No external power source is required; the meter draws its operating energy from the monitored circuit itself. The corded electric design eliminates batteries and associated maintenance.

Calibration and night-light utility

An internal potentiometer allows fine adjustment: turn counter-clockwise if the reading runs high, clockwise if it runs low, using a small screwdriver after removing the outer cover. Beyond voltage display, the soft blue backlight doubles as a night light, and the probe tip functions as a basic electrical test pen for quick polarity or presence checks. The package includes a single meter with flat US prongs.