The transmitter I ordered for my defective original sender of the Rox 9.0. The new station has been delivered with complete accessories (2x holder for Rox 9.0- and 8.0-receiver, 2x O-rings, cable ties, new magnet and the transmitter itself plus tool to change the battery). After mounting the transmitter on my bike the old Rox has 9.0 receiver immediately receive the signal. Works just as well as the old transmitter.