There are four sensor inputs to the controller, as follows: A hidden control switch. Produces a logical 1 when the switch is in the on position. Produces a logical 0 when the switch is in the off position. A pressure sensor under the safe. Produces a logical 1 when the safe is in its normal position (has not been moved). Produces a logical 0 when the safe is not in its normal position (has been moved). A battery powered clock. Produces a logical 1 during normal business hours (7:00 a. m. – 9:00 p. m.) Produces a logical 0 outside of normal business hours (9:01 p. m. - 6:59 a. m.) A switch on the closet door. Produces a logical 1 when the closet door is closed. Produces a logical 0 when the closet door is open.