Mount Type: Surface Mount with Screws Contact Type: NC/NO Contact Capacity: max: 0.5A, 200VDC, 10W Magnet: Ferrite Operation Gap: 20-25mm Housing: ABS Color: White / Brown Recommend Installation Place: Wooden Door or Window Lead Wire: No wires, only Screw Terminal Size (L x W x H): wire part: 55 x 12 x 11mm magnet part: 55 x 12 x 11mm