A lock comprising a housing, a plunger, a locking member, a locking plate, and a control assembly. The housing having an internal cavity, a recess, and a bore. The plunger is disposed in the bore and is slidable between a closed position wherein a second end of the plunger is positioned in the internal cavity and an intermediate portion of the plunger extends across the recess, and an open position wherein the plunger is withdrawn from the internal cavity and the recess. The locking member is movable between a locking position wherein the locking member is engaged with the plunger and an unlocking position wherein the locking member is disengaged therefrom. The control assembly operates the locking plate between a lock position to hold the locking member in the locking position and an unlock position to permit the plunger to move from the closed position to the open position.