The Bellman Phone Sensor works by detecting a light change on the mobile phone surface when a call or text comes in.
The Bellman Phone Sensor is plugged into the following devices, and creates alerts to Bellman Visit System devices as listed below;
BE1431 Telephone/trigger transmitter – which will then transmit the alert to all Bellman receivers in the home
BE1442 Flash receiver – Local alert signal for this device only, flash alert only
BE1380 Alarm clock – Local alert signal for this device only, flash, audible and pillow shaker alerts are available