https://www.doorbird.com/downloads/datasheet_a1081_en.pdf?1
Doorbird Intercom IP I/O Door Controller A1081 428.94 USD
$428.94
For tamperproof control of up to 3 doors or gates
(GTIN/EAN: 4260423860346, P/n: 423860346)
Supports WiFi, Ethernet, PoE
Encryption based on banking standards
Monitoring of 2 external sensors
3 freely configurable, bistable switching relays
Mounting on walls, ceilings and in control cabinets