The Signature Series heat detectors combine advanced sensing technology with a highly practical design to improve system efficiency, reduce installation times, lower costs, and enhance property protection. These intelligent devices feature continuous self-diagnostics to guarantee long-term operational reliability. Utilizing state-of-the-art thermistor technology, these detectors provide highly dependable thermal sensing across various applications.

SIGA-HRD: Combination Fixed Temperature & Rate-of-Rise Detector

The SIGA-HRD is an intelligent device that continuously monitors and analyzes ambient air temperatures to determine whether to trigger an alarm. It uses dual-action detection:

• Rate-of-Rise Function: Swiftly identifies rapidly spreading, flaming fires by monitoring sharp spikes in temperature.

• Fixed-Temperature Function: Activates an alarm the moment the surrounding air temperature surpasses a pre-programmed threshold.

SIGA-HFD: Fixed Temperature Detector

The SIGA-HFD is a dedicated, intelligent thermal detector equipped exclusively with a fixed-temperature sensor rated at 135°F (57.2°C). This model does not include rate-of-rise tracking; instead, it focuses solely on measuring ambient air temperature and initiates an alarm when the heat immediately surrounding the device exceeds its designated setpoint.