Colorado Time Systems Antenna Replacement for PCW PRO Color:Black Wrap up in the Shape Wrap up in the Shape Solver SPORT Women's Hooded Terry Pullover Cover Up featuring Endurance+ fabric for long lasting performance in the pool and built in UPF 50+ sun protection for practice days outdoors Replacement 900 MHz antenna for select Colorado Time Systems wireless timing and pace clock equipment Part Number: R 905 001Frequency: 900 MHzCompatible With: WA 1 (Sky Fi) Wireless Adapter and CTS Wireless Pace ClocksNot Compatible With: Slim Pace ClocksProduct Type: Replacement Wireless Antenna For questions and a formal quote please email facilties@swimoutlet