Specifications Amperage Rating 0.08 A Color Gray Dimensions 4 in W x 2-1/8 in D x 4 in H Gong Size 4 in Indoor/Outdoor Indoor/Outdoor Material Plastic/Steel Mounting Type Surface Operating Temperature -30 to 150 deg F Series 500 Sound Level 108 to 112/98 to 102 dB Specifications Met ARRA Compliant|BAA Compliant|UL Listed|cUL Listed|CSA Certified|FM Approved Voltage Rating 120 V AC