Review on 🔌 Adjustable Sensitivity Dual AC Voltage Detector Test Pen CAMWAY: 12-1000V/48V-1000V, LED Indicator Alarm Mode, Live/Null Wire Judgment - Enhanced for SEO by Christopher Kanter

I used to check if the cable is "hot" with a voltmeter. It wasn't very comfortable. This little tool makes testing easy. It not only detects that the cable is hot, but also inductively, that is, without touching the cable and without inserting the tip of the device into the socket. Also - and this is the beauty - if I plug the tip into an outlet, the device will indicate which side is hot and which side is grounded. This is generally true. For example, I can see the hot side of a power cord leading to a lamp. When I touch both wires, it squeaks hot; country is not. A very useful tool at a good price.