Unable to hear your phone ringing?
Noisy Environment?
Missing important calls?
A simple device that can be used to give a signal or to operate an electrical device every time the telephone rings.
Very useful for noisy places, where a light signal or a siren can draw the attention to the phone better than the telephone bell or for cases where the telephone is in such a place that cannot be heard and you need a secondary bell.
 
COMPLETE ISOLATION BETWEEN TELEPHONE AND LOAD (2000 - 5000V).