ISMARTGATEWireless Waterproof tilt Sensor. Compatible with sectional and tilt Garage Doors. Requires ismartgate hub.

The batteries are installed into the wireless sensor via two sets of clips. These clips are one complete metal part to their positive or negative terminal counterparts. When installing the battery, it is very likely that the metal will score the battery enough so that the positive and negative ends of the battery short itself out. This will very, very quickly result in the battery getting critically hot-- hot enough to burn you or start a fire. If you catch this, you have mere seconds to get the batteries out of the device before things get out of hand. This is an absolutely terrible and unsafe design. The leads should be completely isolated from the battery clips. This is sheer engineering laziness and cost-savings measures and someone is going to get hurt or killed because of this.I emailed the support people at ismartgate and my email was ignored for a week. Clearly they do not care about this. I have since reported this product to the CPSC.

Easy to setup. works like a charm!