Bellman Visit Telephone Ringer or Multipurpose Transmitter

The Swedish designed Bellman Visit Telephone/Multipurpose Transmitter easily connects to your telephone to notify you of incoming phone calls. Just plug the transmitter into the telephone socket by using the enclosed intermediate adapter. When activated by an incoming telephone call, the Telephone Transmitter signals the Bellman Visit receiver(s).

The Telephone/Multipurpose Transmitter may also be used as a push-button transmitter together with other triggering devices like door entrance contact mats, external relays/push-buttons or magnetic contacts for supervising entrances and the opening of door/windows etc. Approximate operating range in open field about 100 feet (33 yards); walls and other large objects may greatly affect coverage. Includes one 9V battery and Y-jack. 3.5mm jack. Two year manufacturer's warranty.

What else do I need to make this work?
In order to be notified, you will need to purchase a receiver that lets you know when the signaler or transmitter is activated.