T-Link 3.0 Wireless unit design for Soap Box Derby timing systems. Select ID options. Available in 900MHZ only, see 5842AZ for International model.
Fully compatible with T-Link1 model 5820A and T-Link2 model 5820EXR.
Existing 5140 Track Sensors need to be upgraded to 5140E models. This is a no charge upgrade with the purchase of a T-Link 3.0