

Uses an IC circuit and has an exit time delay, an entrance delay, an automatic horn cutoff after a period of time, an automatic reset circuit, and N.O. and N.C. loops to allow use of optional sensor switches such as reed switches, snap action switches, and more.
Skill Level: 2
Board size: 3-1/4" x 2-5/8"
Includes
parts (except sensor switches)
PC board
instructions
Requires two 9V batteries, sold separately.