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 ...

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 ...

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 ...