Specification: 

- Light Source GaAlAs Infrared Emitting Diode

- Rated Voltage 17.7- 30.0V DC

- Working Voltaqe 15.0- 33.0V DC

- Maximum Voltage 42VDC

- Supervisory Current 45pA@24VDC

- Surge Current 160uA max.@ 24VDC

- Alarm Current 150m A max.@ 24 VDC

- Air Velocity range 0-300f pm

- Ambiente Tmperature 32F to 120F( 0 C to 49C)

- Color & Case Material bone PC/ABS Blend

- Sensitivity Range 0.5 - 3.8%/ft

- Mounting Refetro NS Conventional Detector Base Data Sheet