1200lbs Indoor Double Electromagnetic Locks with LED SensorThese powerful double electromagnetic locks boast excellent holding force and unique features. The unique dual lock design makes this electric lock ideal for controlling access to double swing doors. You're now able to reliably lock both doors with one electric lock. This does come with two built in door contacts, meaning this can function both as an electric lock to control access to double doors as well a sensor to monitor the status of each door.