433MHz Wireless Door and Window Sensor for Alarm Systems

✅ Watch an opening. The contact signals a compatible panel when the two parts separate at a door or window.

✅ Cover drawers too. The same arrangement can monitor a suitable cabinet or drawer opening.

✅ Skip the signal cable. The sensor communicates over a wireless link, so no cable runs back to the panel.

✅ Match your panel. Listed compatible systems include W181, W184, W202, W204, W18, W20, K52 and W2.

An opening contact for your alarm

This Wireless Door and Window Sensor adds an opening contact to a compatible 433 MHz alarm system. The two parts are fitted close together on the door or window and its frame, and separation triggers the signal. It runs on one 12 V battery, and the roughly 100 m figure applies to open space rather than to a furnished building.

Technical details

• Frequency: 433 MHz
• Power: one 12 V battery
• Open-space transmission: approximately 100 m
• Compatible systems include W181, W184, W202, W204, W18, W20, K52 and W2
• Applications: doors, windows, drawers and cabinets

Add the contact to the opening you want covered.