BT41 is a traditional door phone with one key. It connects to a V801/B801handset
by wire.
Interface 5-wire cable to handset
Operating temperature -35 to +50 °C. At 90% relative air humidity.
Operating voltage 12 to 24 VAC/DC
Current consumption 40 mA in standby
Dimensions (WxHxD) 80 x 200 x 40 mm