MUTAN-II™ Microtransmitter running at 433MHz 1-channel. Double 256-bit encryption Encrypted EEPROM memory. Easy programming via radio. For systems of up to 400 users. Compatible with the MUTANcode™ range. Supports simultaneous multi-frequency receivers. It allows 4 types of high and low adapting to the needs of any installation: Direct High, Supervised High, High Remote and Programming key. Requires 1 battery type 23A or similar (not included).