EDN

Fire Alarm Circuit Using Germanium Diode

This is a simple fire alarm circuit using Germanium Diode and 555 timer. In this circuit Germanium Diode plays very important role in detecting the fire.This is a simple fire alarm circuit using ...
Security

System Sensor Releases New Mechanical Heat Detector

ST. CHARLES, IL, August 8, 2005 - System Sensor released their new 5601P mechanical heat detector in August 2005. The 5601P is a 135-degree F fixed, single-circuit, rate-of-rise (ROR) heat detector ...
EDN

Fire Alarm Using Thermistor

In this fire alarm circuit, a thermistor works as the heat sensor. When temperature increases, its resistance decreases, and vice versa. At normal temperature, the resistance of the Thermistor (TH1) ...
Consumer Reports

Your Garage Needs a Heat-Sensing Fire Alarm

Having a fire alarm in your garage is important, especially if your home has an attached garage or a garage near rooms where people sleep. Fires can spread quickly, and by the time a garage fire ...
Security

Fire Alarm 411: Fire Wire Basics

While there are a lot of similarities between fire alarms and security systems, it is crucial to be aware of the differences, and wiring is one of the biggest. Like security panels, fire alarm control ...