
Xtra.Track Remote
Fully compatible with all products in the Xtra.Series
- USB-C connector for improved reliability.
- Itegrated battery + wireless charging.
- Compact and robust housing for demanding track environments.

Xtra.Mini Remote Control
An additional mini remote control for your track personnel
- Control the speed of all go-karts.
- Lightweight handheld design fits comfortably in your palm or pocket.

Xtra.CDI Shutdown Transponder MK2
This shutdown transponder is designed for petrol go-karts.
- Supports multiple engine brand, e.g. Honda GX series.
- Compatible with Xtra.(Mini) Remote Control and Xtra.Black Box.
- Compatible with De Haardt timing hardware.
- Speed settings: up to 4 different speeds and STOP.
- Double peddling solution.

Xtra.EV Transponder MK2
This shutdown transponder is designed for electric go-karts
- Up to 4 outputs to the motor controller to regulate maximum speed.
- Compatible with Xtra.(Mini) Remote Control and Xtra.Black Box.
- Compatible with De Haardt timing hardware and Xtra.RFID reader.
- Two separated radio channels which can be used simultaneously.
- Automotive style connector.
- Speed settings: up to 8 different speeds and STOP.

Xtra.CAN Transponder PRO
The Xtra.CAN transponder PRO is the latest innovation of De Haardt. It’s developed in cooperation with different go-kart manufacturers.
This transponder was designed for advanced electronic go-karts.
- Extended version of the Xtra.CAN transponder, e.g. live battery status and live CAN error reports.
- CAN bus communication between motor controller, battery management system and transponder.
- Compatible with Xtra.(Mini) Remote Control and Xtra.Black Box.
- Compatible with De Haardt Xtra.Timing hardware and Xtra.RFID Reader.
- Two separated radio channels for safety, timing and CAN information.
- Automotive style connector.
- Speed settings: depending on your go-kart manufacturer, minimum 4 and STOP.

Xtra.Beacon
The Xtra.Beacon is a stand alone loop from De Haardt. It can be used on multiple solutions;
- Pit-in slowdown and pit-out speedup (in combination with the Xtra.Sensor)
- User configurable
- Including 25 meter loop cable and PoE injector plus ethernet cable.
- De Haardt timing loops (extendable up to 10 timing loops on a single go-kart track)
- For timing functionality the Xtra.Beacon needs power only.

Xtra.Sensor MK2
The Xtra.Sensor is an addition for any De Haardt shutdown transponder. It adds functionality to your De Haardt system;
- Pit-in slowdown and pit-out speedup
- Lap-timing
- Sector functions (in combination with the Xtra.Beacon) that can be controlled by a De Haardt Xtra.Remote Control or go-kart track software through the Xtra.Black Box.
- Power and communication through a De Haardt shutdown transponder.
- No batteries
The new Xtra.Sensor MK2 has the same functionality as the previous Xtra.Sensor. It’s downward compatible.

Xtra.Black Box
The Xtra.Black Box has multiple functions. It can be used either as range extender, access point or timing host.
- Extend the range of the Xtra.(Mini) Remote Control up to 300 meters.
- Access point between your go-kart track software and De Haardt safety and CAN information.
- Provide De Haardt timing messages to your track software.
- Web-interface and firmware upgradable.
- Dual radio.