The Thermotech 302 Series rate-anticipation heat detectors operate within a controlled range of two to three degrees of their set points, regardless of the speed or rate of temperature rise.
The SD-651 is designed to meet the performance criteria designated by UL. Its sensing chambers are sealed against back pressure air flow, dirt, and insects.
Robust aluminium housing, IP66-compliance and fire-resistant cable - everything you need for a loudspeaker in harsh applications! Adjust the angle with the included universal swivel bracket and enjoy