Review on Gardner Bender CAM-10 Circuit Alert® Voltage Sensing Module by Yoganand Stradley

My device was packaged with a pair of wire strippers. SAM-10 batteries were not installed but included. The instructions say you simply need to unscrew the screw and remove the battery cover. It did not work. I found on their website that you have to loosen the screw and then press on the screw to remove the cover. It takes quite a bit of force to do this, and I was afraid I might break the detector before opening the battery cover. It has to be very close to a live wire to detect anything, and when tested on an outlet in my house, it only works on a specific spot just below the hot pin. It seemed a bit delicate for such an important task. It's an elegant toy, but not a reliable tool.