The Totaline® P270-3000PL 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and rectangular footprints and mounts to round or rectangular ductwork. This unit senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 feet per minute, temperatures of -4°F to 158°F, and a humidity range of 0 to 95 percent (non-condensing).

Features:

Photoelectric, integrated low-flow technology
Air velocity rating from 100'/min. to 4,000'/min. (0.5 m/s to 20.32 m/sec)
Versatile mounting options: square or rectangular configuration
Plug-in sensor offers superb false alarm immunity and the latest sensor technology
Broad ranges for operating temperature (-4°F to 158°F) and humidity (0% to 95% non-condensing)
Patented sampling tube installs from front or back of the detector with no tools required
Increased wiring space with a newly added conduit knockout
One easy-access Test/Reset button and improved LED status
System Sensor's patented interconnect feature for multi-fan shutdown
New high contrast terminal designations
Built-in short circuit protection from operator wiring errors
Field selectable settings for configuring the detector
Two DPDT Form-C relay contacts
24 VAC/DC or 120VAC

Specifications:

Manufacturer: Carrier
Manufacturer Part Number: P270-3000PL
Product Type: Photo-electric Smoke Detector
Input Voltage: 12-24 VAC
Frequency Rating: 50/60 Hz
Storage Temperature: 22 to 158 Degrees F
Operating Temperature Range: -4 to 158 Degrees F
Operating Humidity: 0% to 95% non-condensing
Dimensions: 5.8" x 15.5" x 4.15"
Weight: 5.0 lb.