Signaling & Notification

The Central Alert Audio Transmitter CA-AX detects the audio alarm of the smoke and carbon monoxide detector, and sends a wireless signal to compati...

The Central Alert Audio Transmitter CA-AX detects the audio alarm of the smoke detector and sends a wireless signal to compatible CentralAlert noti...

Additional doorbell signaler for the SquareGlow Home Kit or Office Kit. Does not work independently; at least one Square Glow receiver is required....

The SquareGlow™ Phone/VP transmitter lets you know when you have an incoming landline phone call or videophone call. When paired with the SquareGlo...