Review on 🔌 EBTN LCD Voltage Tester with Adjustable Sensitivity - Non-Contact Voltage Detector, Dual Range AC Electricity Sensor Outlet and Wire Socket Checker with Flashlight by Rudy Hilmy

You can see from my video that this device is delicate. There are two modes of operation: (1) measurement mode and (2) non-contact voltage detection. (1) Measurement Mode: Use the included test leads, which are of fairly good quality and made of a softer material (not silicone). However, you can connect it to a constant load and the device will automatically measure the resistance, or you can connect it to a resistive load and the device will automatically measure the voltage and frequency of the AC power source. (2) Non-contact voltage detection: After powering on the device, press and hold the blue button for about 2 seconds and the device will enter non-contact voltage detection mode. If you do this, you must hold the device a few feet away from the electrified line for the device to calibrate properly. It's fairly sensitive, alarming a foot from an outlet and about 6 inches from drywall when tracing a wire buried in a wall. The display is nice and bright, focusing on delivering the brightest picture when you're holding it. in your hand, in front of you (i.e. NOT looking directly at it). It uses two AAA batteries (included) and has a battery cover that attaches with a small screw. I wish they used a hinged lid that snaps in place, but like many other Chinese electronics, they prefer the screw-down method. I'm taking off a star because the battery cover is attached with a screw. and the fact that this device does not come with a case. If they fix both of those issues it will be a 5 star product.