Application of non-contact AC voltage detector test pen in home
A test pen is a must-have electrician tool for every household, but it must touch bare wires to measure results. This undoubtedly increases the safety risk and is not suitable for non-professionals to operate. It would be nice to have a non-contact test pen.
Therefore, before using near AC power boxes such as installing new equipment, etc., you must turn off the power and verify that there is no voltage in the switch board. A voltage tester is a device that detects and indicates the presence of voltage on power cables, wires, lighting equipment, circuit breakers, wires, power sockets, etc. A non-contact voltage tester, as the name suggests, is a voltage detection device that does not require any cable, wire or socket contact
