DM55-1 AC Digital Voltage Meter
EMISC001500

Plug the DM55-1 AC Digital Voltage Meter directly into power or into the switch on the wall , it can immediately display the current voltage (whether home, office, industrial and mining enterprises, etc.). The biggest advantage is that when you see the current voltage is too low or too high, you can selectively turn off certain appliances or equipment operation (especially low voltage easy burning appliances), thus effectively protecting your appliances and longing equipment life (It can also be used as a simple electrical measuring pen).