Alpha IP Window/Door Contact


The Alpha IP Window/Door Contact optical allows the automatic opening and closing of connected radiator valves via connected hea- ting thermostats e. g. during ventilation phases. The Window / Door Contact – optical is fixed to windows with adhesive strips or supplied screws; via an optical sensor it detects whether a window is open or closed.

Product characteristics

  • Reliably detects open windows and enables reduction of the room temperature during ventilation, e.g. in connection with the Alpha IP Radiator Thermostat
  • Compact: The integrated infra-red light barrier detects open windows

1.2 Scope of supply

  • Alpha IP Window/Door Contact optical
  • Caps in white and brown (2x)
  • Double-sided adhesive strips
  • Countersunk head screws 2.2 x 13 mm (2x)
  • Reflecting sticker (for dark surfaces)
  • 1.5 V LR03/micro/AAA battery
  • Operating Instructions
SKU: ALPIP03 Categories: ,

Technical data

• Flexible: Can be mounted with supplied adhesive strips or screws

• Individual: white or brown caps

Supply voltage

1 x 1.5 V LR03/micro/AAA

Power consumption

100 mA max.

Battery service life

2 years (typ.)

Protection type


Ambient temperature

5 to 35 °C

Dimensions (W x H x D)

102 x 15 x 20 mm



30 g (including battery)

Radio frequency

868.3 MHz/869.525 MHz

Typical radio free-field range

300 m

Packaging dimensions


122 x 93 x 36 mm