433MHz Wireless Remote Control Switch for Electric Garage Doors Rolling Sliding Gates RF Transmitter Features： 1、Blocked Stop Function: The rolling door will automatically stop running if it encounters an obstacle during operation to avoid damage. 2、Waterproof Design: There is a waterproof silicone pad inside to avoid water damage, suitable for rolling doors, garage doors, retractable doors, etc., don't worry about heavy rain. 3、Signal Stability: The wireless RF switch's signal can pass through walls, floors, and doors to stably control the receiver anywhere within a reliable distance of up to 164 feet/50 meters (no obstructions). 4、Anti Interference: Adopts non directional wireless coding technology, which can be controlled independently without interfering with each other, and has high receiving sensitivity. 5、Wide Application: This switch is widely used in various equipment control; such as LED light/garden light control; electric door; access control; electric curtains and other intelligent control and security fields. Specification： Item Type: Wireless RF Switch Material: ABS Built In Battery Model: 12V23A x 1 (one battery per switch) Battery Capacity: 60mAH The Frequency That Can Match The Remote Control: 433Mhz Scope Of Application: Rolling shutter doors, garage doors, retractable doors, electric curtains, etc. Package List： 2 x Bracket 2 x Switch 8 x Bolt