Door release override key switch key switch is an emergency switch button with a special mechanical key for emergency situations. Simple design, exquisite and elegant stainless steel panel. Stainless steel shell, safe and durable .Tested to 500,000 cycles Defend and duplicate the key, safe to use Three contact output, suitable for all kinds of the lock Stainless steel shell, safe and durable Tested to 500,000 cycles Defend and duplicate the key, safe to use Three contact output, suitable for all kinds of the locks Non-Duplicate Keys. Dimension: 86 x 86 x 20mm Category: Access Control
