Edwards SIGA-OSHDB

Key Features

• Intelligent addressable multisensor combining optical smoke detection with rate-of-rise heat sensitivity
• Fixed 135°F heat threshold covers both smoldering and flaming fires
• Black housing variant compatible with Signature Series fire alarm loops
• Five sensitivity settings with day/night modes and dirty detector warnings
• Optical and thermal sensors work independently for redundant fire detection

Technical Specifications

• Operating Voltage: 15.20 to 19.95 VDC from Signature loop
• Normal Operating Current: 32 µA; Alarm Current: 45 µA
• Smoke Sensitivity Range: 0.5 to 4.36 %/ft (1.6 to 13.6 %/m) obscuration
• Operating Temperature: 32 to 100°F (0 to 38°C)
• Humidity Range: 0 to 93% RH, non-condensing
• Rate-of-Rise Heat: 15°F/minute threshold

Certifications

• UL and ULC listed
• Addressable device for EST Signature Series systems