... Wireless LED display, Wireless LED Sign, Wireless Lighting Management Wireless Attendance Record Machine Wireless Alarm System, Wireless Security system Wireless monitoring system,Water Level Controller, Water detector Wireless POS Terminal, Wireless ... standard user protocols o Channel: 8(default),16/32(customized) o Receive current: less ... : less than 20uA o RF line-of-sight range: more than 2km (BER ...