Light-weight, Very Loud Audible Intrinsically Safe PASS Device. Please Allow 2 To 4 Weeks For Delivery. Includes 9 V Battery for up to 100 hours of operation and an estimated 4-6 Hours in Full Alarm Mode. Timing is factory set- not field programmable. Select desired configuration at time of purchase by using the options below for Alarm Timing, Activation Mode, and Temperature or Motion Sensing.