Sonic Alert Ring Signaler TR 50

by Sonic Alert Will not transmit to Remote Receivers The lamp you plug into the signaler will only light up when the phone or TTY rings Not for use with digital (office) phone systems, but may be used with videophones 4" x 2.5" x 1.25"; Phone cord 6.5' One year warranty

 Other Items from ring signalers

  Super Phone Ringer SR 100 - 
  Sonic Alert Ring Signaler TR 50 - for single room use
  Super Phone Ringer SR 200 - 
  Sonic Alert Ring Signaler TR 75 - w/ transmitter and light switch