Multisensor Smoke, Heat, and CO Detector

Availability: Estimated 6 Weeks

Condition: New
Brand: Edwards, EST
Status: Active
SKU: 26942
Manufacturer Part #: SIGA-OSHCD


The Signature Optica Series SIGA-OSHCD smoke detector brings advanced optical sensing technology to a practical design that increases efficiency, saves installation time, cuts costs, and extends life safety and property protection capabilities. Continuous self-diagnostics ensure reliability over the long-haul, while environmental compensation helps reduce maintenance costs.

The SIGA-OSHCD 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 Optica Series detectors, the SIGA-OSHCD is an intelligent device that gathers analog information from multiple optical sensors, converting this data into digital signals. Utilizing dual optical wavelengths combined with multiple detection angles, the SIGA-OSHCD differentiates particles that are not representative of actual smoke. Particle data is input into digital filters which feed a series of ratios removing signal patterns that are typical of nuisance sources, thus reducing unwanted alarms. To make an alarm decision, the detector’s on-board microprocessor measures and analyzes all optical sensor readings and compares this information to preprogrammed settings. 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.

Additional information

Weight 0.2 lbs


Material Qualities

High Impact Resistance





Detection Method

Fixed Temperature, Rate-of-Rise



Production Status



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Intelligent Multisensor Smoke, Heat, CO Detector


Edwards - Data Sheet