... UHF/vhf Yishi wireless data modules are designed for the professional data collection systems, provides RF link radio communication between two points ... ,in open area);Size: 47mm x 26mm x 10mm(without antenna port).Products Main Features: * Carrier frequency: 433M, 450M, ... -35 to 75 C. * Impedance:50&Omega(SMA antenna port, multiple antenna options available); * Complying with EN 300220 and ARIB STD ...