Horn Finish White Flush or Surface Mounting Alarm Current 11mA FWR 13mA DC Peak Output (dBA) 91 dBA Depth (In.) 13/16 in Height (In.) 4 1/2 in Length (In.) 2 3/4 in Ambient Temp Limits (F) 32 Degrees to 120 Degrees F Humidity Range ( Percent RH) 93 Percent RH Voltage 24V DC FWR Standards CSFM UL ULC