| |
|
ELK DOORBELL AND TELEPHONE RING DETECTOR
CONVERTS SIGNAL TO ACTIVATE AUTOMATED RESPONSE
The ELK930 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 a signal which can be used to trigger an automation controller, relay, timer, etc. The circuit board is pre-scored so that the individual detectors may be snapped off (separated) from each other.
DOORBELL AND TELEPHONE AUTOMATION
Communications systems are an important part of your automated home -- from full-service Home PBX systems with voicemail, to intercom systems, to video door phones, to doorbell and phone detectors.

ELK Doorbell and Telephone Ring Detector Data Sheet (.pdf)
- Small, Compact Size
- Double Sided Foam Tape Provided For Mounting
- Lifetime Limited Warranty
Doorbell:
- Detects Doorbell Activation Current
- Inputs for Two Separate Pushbutton Locations
- No Interference With Lighted Pushbuttons
- Produces an Open Collector Output
- Powered by the Doorbell Transformer
Telephone:
- Detects Telephone Ringing Voltage
- Provides an Open Collector Output that follows the ringing pattern
|