Thermotech Heat Detectors

The Thermotech heat detector Model 302 is a normally open device designed especially for fire detection and alarm systems. These rate compensation type detectors are available in either 135°F. or 194°F. ratings. All four basic models are self restoring, hermetically sealed, shock and corrosion resistant, and are tamperproof. Refer to NFPA STANDARD 72, STANDARD FOR AUTOMATIC FIRE DETECTORS for application requirements, testing and maintenance. the Thermotech heat detectors are not directionally affected, they can be mounted horizontally or vertically.

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  • Thermotech Model 302-ET Heat Detector

    Hermetically sealed for moisture proof or dust proof installations. Requires no special back box. Has plastic hexagonal grip bushing with 1/2” conduit threads for attachment to threaded hub cover, or...
    From $24.95
  • Thermotech Model 302-AW Heat Detector

    Hermetically sealed for moisture proof or dust proof installations. Requires no special back box. For indoor and outdoor use. Protect from direct sunlight and adverse weather conditions. General The Thermotech...
    From $23.95
  • OVERSTOCK! Thermotech 135 Degree F, Explosion Proof, Heat Detector - Model 302-EPM-135

    Thermotech 135 Degree F, Explosion Proof Heat Detector - Model 302-EPM-135 Explosion proof for installation in hazardous locations.     
    $86.00
    $49.99
  • Thermotech Model 302 Heat Detector

    This model is suitable for interior mounting in any atmosphere that is compatible with terminal screw type connections.GeneralThe Thermotech heat detector Model 302 is a normally open device designed especially...
    From $24.25
  • OVERSTOCK! Thermotech 194 Degree F, Explosion Proof, Heat Detector - Model 302-EPM-194

    Thermotech 135 Degree F, Explosion Proof Heat Detector - Model 302-EPM-194 Explosion proof for installation in hazardous locations.     
    $86.00
    $49.99
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