just add 2"
adjustable plastic straps
chrome plated forged brass ball
Sections are reversible for airflow the same or opposite
or 3' hole spacing
Carbon Monoxide Alarm, Hardwired w/Battery Backup Hand Saws just add 2"120v, ac dc, hardwired carbon monoxide alarm, with 9v battery back up, electrochemical carbon monoxide sensor, latching alarm indicator, 2 silence features, intelligent sensing technology, dust cover, easy installation maintenance, end of life signal, single button test silence, meets codes where carbon monoxide alarms are required for new construction, 10 year carbon monoxide sensor, 10year end of life, 10 year limited warranty.