Hochiki DH-100-A Duct Detector

The Hochiki DH-100-A is an analog photoelectric duct smoke detector for HVAC supply and return ducts on DCP addressable loops. It’s built for dependable, early smoke detection in moving air (low-flow rated to 100 FPM) and simple service with a clear cover, a smoke test port, and a wiring access hatch. A rugged gray steel backbox mounts to the duct, a 7.5 in exhaust tube is included. Detector Head: ALN-DH analog photoelectric Loop/Power: DCP powered SLC, 25.3 to 39.5 VDC Current: 450 µA standby; up to 30 mA alarm Air Velocity: 100 to 4,000 FPM Housing: 18-gauge steel backbox with clear cover Included: 7.5 in exhaust tube Sampling Tubes (sold separately): STS-2.5 (2.5 ft), STS-5.0 (5 ft), STS-10.0 (10 ft) Service Features: Smoke test port; wiring access hatch; terminals for remote alarm LED