The Signature Series SIGA-PHCD detector brings advanced
multisensing technology to a practical design that increases efficiency, saves installation time, cuts costs, and extends life safety
and property protection capabilities. Continuous self-diagnostics
ensures reliability over the long-haul, while environmental compensation helps reduce maintenance costs.
The SIGA-PHCD provides the best of all worlds with comprehensive life safety monitoring. The combination of optical smoke detection with rate-of-rise heat sensing technology provides efficient
identification of smoldering fires, as well as fast flaming fires. With
the added element of CO monitoring, this detector pulls double
duty: continually monitoring the environment for signs of fire — as
well as its invisible yet deadly companion, carbon monoxide.
Like all Signature Series detectors, the SIGA-PHCD gathers
analog information from their sensing elements and converts this
data into digital signals. To make an alarm decision, the detector’s on-board microprocessor measures and analyzes smoke and
heat sensor readings and compares this information to historical
data. Digital filters remove signal patterns that are not typical of
fires, thus virtually eliminating unwanted alarms. The detector also
analyzes the smoke and heat sensors independently from the CO
sensor to determine whether to initiate a fire alarm, a life safety CO
alarm, or both.