Smoke Alarm, Detection Method Photoelectric, No Interconnection Capability, Power Source 12/24 VDC, Four-Wire, Visual Alert Red LED, Diameter 5-19/64 In., Height 2 In., Digital Readout No, Battery Backup No, Features Removable Detector Cover and Chamber, Built-In Remote Maintenance Signaling, Drift Compensation and Smoothing Algorithms, Hush Button No, Locking Pin No, Operating Temp. 32 Degrees to 120 Degrees F, Standards UL, CSFM

• System Sensor 4W-B
• 4-Wire Photoelectric i3 Smoke Detector With Base
• 12/24 VDC
• Product Dimensions: 5 x 5 x 2 inches
• Item Weight: 6.28 Ounces
• Style: Wired 4 wire smoke detector. No Sounder
• Sensor Type: Photoelectric

Shipping Note: Shipping to Alaska, Hawaii, APO addresses, or PO Boxes is not available for this item.

Warranty: 90 Day Woot Limited Warranty