The DS 800 Doorbell/ Telephone/ Intercom Signaler accomplishes three functions in one new sleek updated case. Just plug the telephone cord into a modular telephone jack. Its advanced design draws no phone line power. With the lowest ringer equivalence number on the market today (0.0) the DS 800 will not bog down your telephone service.

The DS 800 flashes a light plugged into it's outlet and the DS 800 also sends signals to other Sonic Alert remote receivers.

5 yr. manufacturer's warranty!