Passive systems

For high-speed sports such as car and motorcycle racing, we recommend using Chronelec Elite or LS transponders.
These are Chronelec’s long-standing and proven transponders, trusted by many users worldwide. They remain active devices that must be charged, unless connected directly to the vehicle’s battery.
Compatible with both Elite and Protime decoders, they also allow the use of intermediate decoders for split or sector timing, providing highly accurate results in demanding racing environments.