The SP-1 is a touch sensitive wall switch which is generally used as a superior alternative to wall mounted mechanical push buttons. When touched by the human hand (even through gloves) the unit operates a set of internal dry contacts. The unit includes an internal timer, an LED which indicates operation and a redundant backup switch. The SP-1 is intended for indoor use only. Product Type: Touch-free Button Product Type: Touch-free Button Manufacturer Part Number: SP1 Limited Warranty: Lifetime Manufacturer: Securitron Magnalock Corporation Product Model: SP-1 Product Name: SP-1 Touch Free Button Brand Name: Securitron Brand Name: Securitron Height: 5.8 Width: 3.2 Depth: 1.5