Overview
System Sensor 5621 135F Dual-Circuit Fixed/Rate-of-Rise Heat DetectorOverviewThe System Sensor 5621 is a 135°F fixed/rate-of-rise heat detector design…
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Overview
The System Sensor 5621 is a 135°F fixed/rate-of-rise heat detector designed for conventional and addressable fire alarm systems. The dual-circuit architecture supports both communication modes, enabling flexible integration into existing or new installations without requiring separate detector types.
Operates at 35VDC and supports both conventional and addressable system configurations. Suitable for general indoor applications requiring temperature-sensitive fire detection. The fixed temperature setpoint of 135°F addresses moderate-temperature environments, while rate-of-rise functionality provides rapid response to sudden temperature increases.
Ideal for integrators standardizing heat detection across mixed system architectures. The dual-circuit design reduces inventory complexity and simplifies maintenance workflows in multi-building or retrofit deployments.
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System Sensor
System Sensor
System Sensor
System Sensor
System Sensor
Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.
Fixed scope • Fixed price
