The Model302-ET-135 is hermetically sealed for moisture-proof or dust-proof installations. Requires no special backbox. Has plastic hexagonal grip bushing with 1/2” conduit threads for attachment to threaded hub cover, or any outlet box. Must be hand tightened only. For indoor and outdoor use. Protect from direct sunlight and adverse weather conditions.

• 135°F - All Weather Vertical Mounting FM & UL
• Immediate Response- The 302 Series activate whenever ambient air temperature reaches a detector's setting, eliminating the thermal time lag inherent in conventional heat detectors.
• Eliminates False Alarms- The 302 Series do not respond to momentary temperature fluctuations below the selected temperature.
• Universal Application- The 302 Series can be used in all areas for any type of occupancy.
• Self-restoring
• Hermetically sealed, shock resistant, corrosion resistant, and tamper-proof.