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Note that the 20114 190°F fixed temperature detector is now a legacy product which has been superseded by the 20514 194°F detector which adds the rate-of-rise detection safety feature - at essentially the same price. See Related Products, below.
Almost the only reason to purchase this 20114 is if you need to replace and match an existing 190°F detector in a pre-existing installation.
Aqualarm fire detection systems are sold both as complete systems, and as separate components typically consisting of an alarm panel and choice of 2-wire remote sensor/detectors.
Typically, 'fire detectors' are actually 'heat detectors' with the internal electrical switch contacts which close under pre-set temperature conditions.
This 20514 Remote Fire Detector is a combination detector with a Fixed 194°F setting as well as Rate of Rise detection for detecting unusually fast rises in temperature - even at lower temperatures.
With a pre-set temperature of 194°F, this detector is most suitable for placement in small engine rooms or compartments where you expect heat build-up and higher temperatures within the confined space.
This 20514 Fire Detector is compatible with the Aqualarm 20277 Fire Panel, and 20278 Fire and Smoke Panel, but should work with any manufacturer's low voltage monitor panel that uses 2-wire (2-pole) detectors.
These 2-wire detectors can also be wired in series (as an automatic on/off switch) to a powered bell, horn, or buzzer circuit for use as a fire alarm.
• Normally open contacts
• 12V, 24V, 32V multi-voltage
• UL and ULC Listed
• Complies with Transport Canada, 10.3 Fire Detection and Alarm regulations
• Dimensions: 2-1/2" Dia. x 1" High (Single function detectors are smaller than comparable combination detectors.)