Fire-Lite 302-ET-135 Rate-Anticipation Heat Detector, 135°F Explosion Proof Mounting

For facilities that demand rapid, dependable thermal monitoring, the Fire-Lite Alarms by Honeywell 302-ET-135 rate-anticipation heat detector provides fast, application-ready protection. This heat detector is engineered to detect rapid rises in temperature (rate-of-rise) and activates at a 135°F point to reduce false alarms from transient fluctuations while ensuring prompt response to real fire conditions. Housed in an explosion‑proof, hermetically sealed enclosure, the 302-ET-135 is corrosion- and shock-resistant—ideal for industrial, petrochemical, and other hazardous locations where standard detectors may fail.

Designed for straightforward installation, the unit mounts vertically with a 1/2" conduit-threaded bushing and requires no special backbox, integrating easily into wired 120V AC security and fire monitoring systems. Its tamper-resistant, self-restoring operation lowers maintenance overhead and keeps your surveillance and protection infrastructure reliable. Backed by Honeywell engineering and US manufacturing, the 302 Series is a smart choice for contractors and facility managers who need rugged, code-compliant thermal detection. Specify the Fire-Lite 302-ET-135 for robust fire detection in demanding environments—contact us to order or to discuss application-specific guidance.

• Fast, early thermal detection that minimizes property damage and downtime by responding to rapid temperature rises before conventional detectors.
• Rate-anticipation design with a 135°F activation point reduces nuisance alarms while ensuring reliable response to genuine fire events.
• Explosion‑proof vertical mounting and hermetically sealed, corrosion‑resistant construction makes it ideal for harsh or hazardous industrial environments.
• Simple installation with 1/2" conduit-threaded bushing and no special backbox required, compatible with standard 120V AC wired systems for seamless integration.
• Durable, tamper‑resistant build and US manufacture deliver dependable long-term monitoring for security, surveillance and facility protection systems.