TYY YDT-S01 Fixed Temperature Heat Detector

TYY YDT-S01 is a heat detector designed to identify fires with high flames, intense heat, and little initial smoke. The device uses UL certified fixed temperature sensor ensuring a reliable fire detection performance.

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Identify general zones of fire threat and experience world-class fire protection with TYY’s conventional fire alarm system. From manual call point to control panel, each TYY device offers efficient fire detection and alarm solution across defined areas best suited for smaller properties and businesses.


  • Perfect for dusty and dirty working environments.
  • With dual light guide for device visibility.
  • Easy installation.
  • Sealed body enclosure prevents dust and moisture from affecting the device.


Rated temperature: 70 °C
Activating temperature: 87.5 °C
Activation: within 20 seconds
Rated voltage: DC 24V 25mA
Relative humidity: 0 ~ 95%
Ambient temperature: 0 °C ~ +50 °C
Dimensions: 100.92 x 41.3(H)mm
Material: Flame-resistant plastic (UL94V-0 compliant)


Effective monitoring area

Height from ground Building structure 1 type
< 4 m Fireproof building materials 60 square meters
General building materials 30 square meters
> 4 m < 8 m Fireproof building materials 30 square meters
General building materials 15 square meters