LVM450 Voltage Monitor

This Voltage Monitor plugs into any 120 volt receptacle on a portable generator or wall outlet to provide a continuous, accurate reading of the AC Line Voltage. It can be left plugged in permanently because it acts as a night light!  Includes receptacle on front ?so you don?t lose the use of the outlet.  Can help you prevent costly repair bills by warning against low/high voltage conditions (ideal for brownout areas).  The green zone indicates proper line voltage (110-125 volts).  If the meter reads in either red zone, then sensitive equipment, appliances, motors, air conditioners and hi-fi equipment should be turned off to prevent damage.