Replacement Part, Product Type Replacement Part, Series BW Icon+, Sub-Brand BW, For Gas Type Carbon Monoxide, Hydrogen Sulfide, LEL, Oxygen, Sulfur Dioxide, For Use With BW(TM) Icon, BW(TM) Icon+, Includes PCB, Overall Height 3 in, Overall Length 6 in, Overall Width 8.25 in, Standards ATEX, CSA Certified, IECEX, Alert Type Light, Sound, Vibration, Power Source Battery