machined from Acetal with a machined clear polycarbonate Protector Box Lid, designed to protect your MYLAPS Personal RC4 Hybrid or RC4 "3-Wire" Transponder. Included in the package is a standard 6" servo ...

an infrared type transponder with a unique ID#. Its small at only 12x16x7mm, and is very lightweight (3g). NOTE: This transponder is not compatible with AMB timing systems.  This product was added ...