Siemens DT-135WP

DescriptionThermal Fire Detectors (DT-135WP and DT-200WP) from Siemens Fire Safety are of the rate-compensation / fixed-temperature type, and are designed for use with either standard Fire Safety systems or other commercially available fire-alarm systems. The detector element for Models DT-135WP and DT-200WP is self-restoring after operation, and is supplied in ratings of 135?F (57.2?C) and 194?F (90?C). Underwriters Laboratories, Inc. recommends the Fire Safety Thermal Fire Detectors be used to protect a maximum of 2,500 square feet. However, job conditions and sound engineering judgment often dictate closer spacing to provide faster detection.