Homematic IP Hmip-Swdo

usual magnetic contacts. This eliminates the need for an additional magnet, which reduces the installation effort. The integrated infrared light barrier monitors the door or window and recognises the open/closed status. The small sensor performs several tasks in the Homematic IP system. Firstly, it ensures that the heat supply is automatically reduced during ventilation by informing the Homematic IP Radiator Thermostat as soon as a window or even an outside door is opened. The option of defining a signalling delay for doors that are used several times a day is particularly practical here in order to prevent the radiator valves from constantly opening and closing. The sensor also reliably monitors access to your own four walls when you are away. When alarm mode is activated, the Homematic IP siren can be activated if an unauthorised window is opened. A warning message is also sent to the user via the app in the form of a push notification. This gives the user the opportunity to react promptly to the dangerous situation. The small sensor, which weighs just 30 grams, is so effective that it employs the power of one AAA battery for around two years. If the battery capacity runs low, the Homematic IP app will notify you. The low sensor weight allows reliable installation using double-sided adhesive tape. This is supplied together with an additional brown cover cap and a reflector foil. If the window or door material does not allow attachment using adhesive tape, the two tiny screws supplied can be used.