Wired Heat Detectors Frequently Asked Questions

What is a Heat Detector?
If you have a room where a standard smoke detector might cause a false fire alarm, you might use a heat detector instead. Learn what heat detectors are and how they work.
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Where Should I Install a Heat Detector?
Certain areas of the home are better-suited for heat sensors than smoke sensors. Using heat sensors instead of smoke sensors can prevent false alarms. Learn about heat detectors.
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Smoke Detector vs. Heat Detector
A smoke detector responds to the presence of smoke. A heat detector responds to unusually high temperatures. Both indicate that there is a fire. Learn about fire-safety products.
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What's the Best Place to Install a Heat Detector?
There are certain applications in which using a standalone heat detector makes sense. This includes installations in environments that often feature smoke or dust that could potentially cause a false alarm on a smoke detector. Learn more about choosing a location for a heat detector.
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When Should I Use a Heat Detector Instead of a Smoke Detector?
There are a few situations where it is better to use a heat detector instead of a smoke detector. This includes rooms where smoke may be present. Heat detectors are also used in dusty areas where fine particles may cause false alarms for heat detectors. Learn more about heat detectors.
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How Does a Fire Detector Work?
There are two primary methods for detecting a fire. These are through either smoke detection and heat detection. For that reason, a "fire detector" is more commonly referred to as a "smoke detector" or a "heat detector". There are also combo smoke and heat sensors. Learn more about these devices.
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How Do I Wire a 2-Wire Smoke Detector to My Wired Alarm System?
A 2-wire smoke detector connects directly to a hard-wired zone on a wired alarm system. Learn how to interface a 2-wire smoke with your wired alarm system.
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How Do I Test My 521BXT Smoke Detector for Proper Function?
To test a 521BXT Smoke Detector for proper function, use canned smoke to test the device's smoke detection and a hair dryer to test its heat detection.
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How Do I Test the ESL 521BXT for Heat Detection?
You can test the heat detection of the 521BXT by using a hair dryer to shoot hot air onto the device. A successful test will be indicated by a loud siren.
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How Do I Clean My ESL 521BXT Smoke and Heat Detector?
You can clean your ESL 521 BXT Smoke and Heat Detector by removing the optical chamber inside the device and removing any dust and dirt that is present.
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