Homematic IP window and door contact optical (HMIP-SWDO-2), opening detector (white)

"This compact sensor instantly detects the opening or closing of windows and doors via an integrated infrared light barrier. Reliable window monitoring secures your home while simultaneously saving valuable energy during ventilation by automatically lowering the room temperature. When used with Homematic IP radiator thermostats (sold separately), the room temperature is designed to fit into real setups, where reliability and ease of use matter as much as raw specs.

This compact sensor instantly detects the opening or closing of windows and doors via an integrated infrared light barrier. Reliable window monitoring secures your home while simultaneously saving valuable energy during ventilation by automatically lowering the room temperature. When used with Homematic IP radiator thermostats (sold separately), the room temperature is automatically reduced during ventilation. The setback temperature can even be individually configured. Closing the window automatically restores the desired temperature.

What matters most is how smoothly it fits into your routine: straightforward setup, consistent performance, and a design that stays reliable over long-term use.

A solid choice when you want the benefits to show up in everyday use, not just on a spec sheet."


Type of opening detector
Color white
EAN 4047976578573
Manufacturer's No. 157857A0
Smarthome HomeMatic IP
Device characteristics Device type Home automation
Max. transmission range (open field) 300 m
Area of application: Indoor
Maximum reception range (open field): 300 m
Protection class IP20
Operating temperature range: 5 - 35 °C
Connection type: radio
Radio frequency from 868 MHz to 8,686.6 MHz
Note: Operation requires connection to one of the following solutions: Homematic IP Access Point, CCU3 central unit, or a third-party partner solution.
Accessories require Homematic IP Access Point, CCU3 central unit or a third-party partner solution.