The SD119 include 2-wire and 4-wire detectors,which provide fast and reliable response for photoelectric smoke and heat(135 °F) detection.While the somke and heat detection circuits operate independently,their outputs being "OR"connected,The Sentek's SD119 series detectors provide the fire detection performance by acting as a smoke sensor and/or a 135 °F heat detector at the same location. Specification: Smoke Sensitivity: 0.98~4%/FT Obsuration(UL standard) Ceiling Spacing: 50 foot rating for heat sensor (55 degree) Reset Voltage: less than 1 volt Reset Time: less than 1 second Alarm Indicator: LED continuously emitting red light Remote Output: 25 mA max., diode gate Temperature Range: -10°C to 55°C,UL268 temperature 0~37.8 °C Permissible Current: 80mA maximum Humidity: 0 to 95% RH, no condensation or icing Alarm Contact: (for 4-wire)NO or NC Operation, Form A: 1.0A@30VDC/0.5A@125VAC Dimensions: 100mm (dia) x 46mm (ht) with base Weight: 130g/set with base Conventional Photoelectric Electric Smoke Alarm with UL Certification Product Features: *2 or 4 wire *Advanced detection and discrimination algorithms *Easy installation and maintenance *Sleek low-profile housing design *Durable sensor head, no need for replacement *SMD circuit board design: satisfactory quality and reliability guaranteed *N/C and N/O relay output *Auto reset function for security systems (4 wire optional ) Sensor base option:standard and Schottky Diode *Five-year warranty Order Information: The range includes: SD119-2: 2 wire photoelectric smoke alarm SD119-2-LED: 2 wire photoelectric smoke alarm with remote LED output SD119-2H: 2 wire photoelectric smoke and heat alarm SD119-2H-LED: 2 wire photoelectric smoke and heat alarm with remote LED output SD119-4: 4 wire photoelectric smoke alarm(12/24/48VDC) SD119-4B: 4 wire photoelectric smoke alarm with Buzzer(12/24/48VDC) SD119-4AR: 4 wire photoelectric smoke alarm with auto-reset function(12/24/48VDC) SD119-4ARB: 4 wire photoelectric smoke alarm with auto-reset function and Buzzer(12/24/48VDC) SD119-4H: 4 wire photoelectric smoke and heat alarm (12/24/48VDC) SD119-4HB: 4 wire photoelectric smoke and heat alarm with Buzzer(12/24/48VDC) SD119-4HAR: 4 wire photoelectric smoke and heat alarm with auto-reset function(12/24/48VDC) Model 2/4 Wire Heat Sensor Setting Voltage DC (Min./MAX.) Standby Current (Max.) Alarm Current (12/24V) Surge Current (Max.) Start-Up Time (Max.) Permissible Current (Max.) Cycle Time Alarm Contact Certified SD119-2 2 10.8-33V 80µA 22/55mA 160µA 30Sec. 80mA 1-3Sec. - UL/EN SD119-2L 2 10.8-33V 80µA 22/55mA 160µA 30Sec. 80mA 1-3Sec. Remote LED UL/EN SD119-2H 2 135±5°F 10.8-33V 80µA 22/55mA 160µA 30Sec. 80mA 1-3Sec. - UL/EN SD119-2HL 2 135±5°F 10.8-33V 80µA 22/55mA 160µA 30Sec. 80mA 1-3Sec. Remote LED UL/EN SD119-4-12/24 4 12/24V 80µA 30/45mA - 30Sec. - 1-3Sec. Form A UL/EN SD119-4H-12/24 4 135±5°F 12/24V 80µA 30/45mA - 30Sec. - 1-3Sec. Form A UL/EN SD119-4AR-12/24 4 12/24V 100µA 30/45mA - 30Sec. - 1-3Sec. Form A Auto Reset CE SD119-4ARB-12/24 4 12/24V 100µA 30/45mA - 30Sec. - 1-3Sec. Form A Auto Reset CE SD119-4B-12/24 4 12/24V 80µA 30/45mA - 30Sec. - 1-3Sec. Form A CE SD119-4HB-12/24 4 135±5°F 12/24V 80µA 30/45mA - 30Sec. - 1-3Sec. Form A CE SD119-4HARB-12/24 4 135±5°F 12/24V 100µA 30/45mA - 30Sec. - 1-3Sec. Form A Auto Reset CE Related Products Company Information