ELK-930 ELK Doorbell & Telephone Ring Detector

The ELK-930 performs three functions. It can detect ring activation from one or two doorbell buttons and a single telephone line. It conveniently isolates the voltage and current and produces an open collector (pull to ground) output which can be used to trigger an automation controller, relay, timer, etc.

Specifications

• Max Input on Doorbell Boards - 24 Volts A.C. Nominal
• Max Output - 40 mA @ 12 Volts D.C
• Doorbell Detection Current - 900 mA min
• Size - 3.4" x 2.75" x .625"

ELK-930 Specifications PDF