Notification Systems & Signalers

The Door Knock Sensor with Door Hanger is part of the CentralAlert Notification System by Serene Innovations. It sends to the CentralAlert receiver to notify you when someone is knocking on the door. The CA-DX Door Knock Sensor is ideal for bedrooms or hotel rooms and is safe and secure since there is no part visible outside the door.

The Midland Weather Alert Radio can be used by itself for those needing to be contacted by a loud siren only. The weather radio has a special receiver that tunes to NOAA's 24/7 National Weather Service broadcast. Add optional accessories to build your own system (more than one accessory requires a Dual Connector) or buy a prepackaged system.

The Deluxe Remote Receiver SA201, will alert you by flashing a light when a signal is transmitted from a Sonic Alert Transmitter (Telephone Ring Signalers, Baby Cry Signaler or Doorbell Signaler). A signal from one or all of the transmitters will be received by the SA201 and in turn will flash a light which is plugged into the SA201 cord.