Conventional Smoke Detector / 2-Wired Smoke Detector
SPECIFICATIONS of Optical Smoke Detector / 2-Wired Smoke Detector:

Operating Voltage Range: 9 to 28VDC Volts Non-polarized

Standby Current: ≤ 60µ A @ 24 VDC

Maximum Alarm Current (LED on: ) ≤ 30mA @ 24 VDC

Operating Humidity Range: 10% to 93% Relative Humidity, Non-condensing

Operating Temperature Range: 14° F to 122° F (-10° C to50° C)

Adjustable Sensitivity: 1.06±. 26%FT.

Height: 2.2? (55 mm) installed in Base

Diameter: 4.0? (103 mm)

Weight: 5.5 oz. (155 g)