Dry Contact Door Switch

A dry contact is the synonym of volt free it is not wetted by a voltage source dry contact can refer to a secondary set of contacts of a relay circuit which does not make or break the primary current being controlled by the relay.

Dry contact door switch.

These door contact position switches. 1 pcs white recessed door contacts nc security alarm window sensors with magnetic reed switch. They help keep buildings and controlled access areas secure. 2xnc no combined magnetic switch door sensor door contact dry contact open circuit on.

2sets magnetic reed switch normally open closed nc no door alarm window security magnetic door switch magnetic contact switch reed switch for gps alarm or other device dc 5v 12v 24v light. It is necessary to use a dry contact adapter when installing the aladdin connect kit to a genie or overhead door series iii garage door opener. The dry contact sensor is a simple connection to burglar alarms fire alarms or any application that requires monitoring by the sensorprobe. Usually some other contacts or devices have the job of starting or stopping the primary.

Free shipping on your first order shipped by amazon. A series iii garage door opener will use a wall console with black button part 37222r or 37223r. Get it as soon as fri jan 3. Free shipping on orders over 25 shipped by amazon.

Dry contact sensors are user definable and can be used to detect many different inputs such as ups status security systems air conditioning status. Magnetic contacts are low current devices that send a signal to an alarm or a supervised monitoring system when an armed door is opened. 4 3 out of 5 stars 158. Dry contact may mean any of the following in electronics.

A genie or overhead door series iii garage door opener can be identfied by the wall console.