Our Contact Closure Sensor is a contact closure sensor. It detects the open-and-closed status of a pair of isolated contacts, such as a relay or switch. It is ideally suited for detecting contact closure on drapery controllers, thermostats, security contacts, and door strikes.

The Contact Closure Sensor circuitry provides a rapid response to contact closures (4mS typ.) with a slow response to contact opens (75mS typ.). This eliminates false triggers due to contact bounce created by mechanical contacts coming together, such as push buttons or relays.

The Contact Closure Sensor plugs directly into our Home Network Adapter's IR/Sensor connector for proper operation. (The Home Network Adapter connector must be configured as an input.) The Contact Closure Sensor is connected directly across the contacts, with the open/close state to be determined. There is NO polarity to the wiring. The Contact Closure Sensor requires +5V (supplied by the Home Network Adapter) to operate and provide a logic output representing the contact closure state. The Contact Closure Sensor has a standard 3.5 mm stereo jack.