The ICT Wireless 433MHz Transmitter is designed for long range wireless access control of garage doors or sliding gates. Each transmitter is compatible with most electronic access control systems, can function as a personal alarm device, and optionally comes with built-in proximity tag for standard door access. This high quality transmitter is hermetically sealed to protect against water and foreign substances. Delivering an impressive read range up to 200m (656ft) in open environments, it offers convenience and security with unmatched performance.