The MK-6-10 magnetic latching sensors will remain in state until they are actuated a second time. They are designed to drop in place on a circuit board with no need for mounting brackets or external power. Features include direct-load switching, switch times of less than 1 ms, switching voltage of 200 vdc, switching current of 0.5A, carrying current of 1.75A, and a contact rating of 10W. Pricing is under $2 each/10,000.