White alarm sensor. Ideal for use with valuable items in your display cabinet. Easy to install without wires. The alarm is mounted on the door, for example at the bottom. You can choose from different alarm tones. When the cabinet is opened, the alarm activates. It turns off when the door is closed again or by switching off the sensor. Can also be used for other types of cabinets or drawers. Supplied with mounting pads, user manual, and 3 x batteries.