Wireless Wall Keypad For Garage/ Swing/ Sliding Gate Opener Switch With. Features: This is a Dual Channel Transmitters That Are Activated Only After Having Entered a Suitable Combination. The Units Are Designed for Installation in Indoor or Outdoor Locations That Ensures the Utmost Security. The Transmitted Code is Changed at Each Transmission Session. The Estimated Transmission Range is 200 M in Open Space and 35m Indoors . The Units Are Designed to Ensure Battery Life Equivalent to an Estimated 2 Years of Oper-ation Considering 10 Transmissions/day. Specifications: Power: 6Volt DC Battery Life: 2 Years(4 Times Operation Every Day) Frequency: 433.92MHz+/-75KHz Transmitter Power: 1Mw Data Format: Standard Work Temp:- 20~+55 Centidegree Password Number: 0-8 Water Proof Level: 1p54 Dimension: 85*75*35mm Weight: 150g . We are an international based seller that will ship your order from abroad, please at least a minimum 14 working days for delivery right now due to the ongoing delays in shipments globally.