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Silent Knight SD505-AHS Addressable Heat Sensor

Silent Knight SD505-AHS Addressable Heat Sensor


Our Price : $49.27

UPC Code: 783196008158

Product Code: 478936



Model SD505-AHS Addressable Heat Detector

The SD505-AHS is a heat detector suited to virtually any commercial setting. The SD505-AHS is an absolute temperature device. This means that it responds to an alarm immediately if the temperature goes above the trip point (programmed at the panel).

The SD505-AHS provides accurate temperature measurement data to the fire alarm control panel. This heat detector is particularly suited to environments where smoke detectors cannot be used because of the presence of steam or cooking fumes such as in a kitchen.

The SD505-AHS unit is made up of an externally mounted thermistor with a specially designed cover that protects the thermistor while allowing maximum air flow. The thermistor reads the temperature from the air it takes in. It then transmits an analog signal representing the temperature to the IntelliKnight panel.

If the temperature exceeds the trip point (programmed at the panel), an alarm occurs. The status LED lights continuously during the alarm period.

Under normal conditions, the status LED blinks approximately every 15 seconds, indicating that the head is communicating with the loop.


  • Low profile, 2 inches, including base
  • Absolute temperature device
  • Simple and reliable addressing
  • Uses digital communication protocol
  • Built-in fire test feature


Operating Voltage: 17-41 VDC

Current Consumption: Standby: .55 mA Alarm: .55 mA

Detection Temperature Range: 135F to 150F (57C TO 65C)

Ambient Temperature: 32F to 100F (0C to 37C)

Mounting: 4 SQR, 4 OCT Single gang mud ring


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