• Use this device to monitor your voltage with digital accuracy. DVM1221
• Voltage below 108 or above 132, can damage your electrical devices.
• Simply plug in to any outlet in your RV to measure AC voltage
• Also suitable for boat/marine, household or office usage!
• Measuring range: AC current from 90 – 132 Volts
• Avoid using in a wet/damp environment
• Do not allow children to use as a toy