Chafon 6M Medium Range UHF Reader Writer,RS232/RS485/26/34 Wiegand Output UHF Integrated Reader for Parking Application + Free 2 Sample Card +2 Windshield Tags +2 Paper labels Working mode:Passive, Protocal: Support ISO18000-6C and ISO18000-6B. Support RS232, RS485, Wiegand 26/34 interface.Please note:Not support IOS system Support auto-running, interactive and trigger-activating work mode. Low power dissipation with single +9V DC power supply. Integrated 8dbi built-in antenna HCP circular Range:3m~6m. Application:Parking and Warehouse management etc.