in-demand ! MRT Transponder, works with mylaps RC3 RC4 through V4.4 system for RC car racing

flawless with every AMBrc systems and RC4 up to v4.4 (will not work with the v4.5 Drone System update). The Stormer team use the MRT transponders ourselves. So you know they're good! Pop them in all your favorite cars. Associated, Xray, Losi, CRC, Serpent, you name it!

MRT Transponder, mPTX-ID 100% waterproof

These transponders from MRT are lightweight and small in size. This makes them effortless to fit into the smallest, tightest areas.
Size: 19 x 16 x 6mm
Weight: 4 grams

The PTX ID number of each transponder can be changed to an alternative ID number. Each individually numbered transponder has its 'custom' ID number written on the supplied instruction sheet with the an alternative number also available.

PTX transponders are supplied with 2 stored ID numbers and come factory set on the custom ID. It is possible to switch from the custom number to the other number if required. To use the PTX it should be connected to a power socket on a receiver or to a battery pack. The LED will light up