Abstract: The application note presents a simple circuit that senses a supply-current increase triggered by activation of a smoke detector’s internal alarm. The circuit then sends a remote output to ...

The MSR-50 Series of duct smoke detector remote accessories is available. The UL-listed, MEA-accepted accessories are compatible with the manufacturer’s detection products including all SM-, HS-, and ...

With the launch of a new intelligent Remote Test Capable photoelectric detector (2251BR), System Sensor adds simplified remote testing capability to the updated DNR and watertight NEMA DNRW ...

When you move into or buy a new home, no one hands you a guide to how the smoke detectors work. They "chirp," which really means shriek loudly, and you occasionally have to put new batteries in them.

This alarm circuit was designed to monitor a mains-powered smoke detector located in a shed (which is used to house dog kennels). It provides complete isolation from the mains so that low-voltage (12V ...