Technology marches on! I have the Pro Chrono Digital, which is the model just before the DLX. I purchased the bluetooth module in order to use my tablet or phone, but the DLX has built in Bluetooth.
Another option, if you are shopping around for a new Chronograph. The DLX lists for $135, but it might be a bit cheaper if you look around.
https://www.competitionelectronics.com/product/prochrono-dlx/