iButton

Designed to withstand harsh environments, including dirt, moisture, and extreme temperatures that would damage standard RFID cards.
Each iButton contains a factory-lasered, unique 64-bit registration number that cannot be easily duplicated or altered.
Drivers tap their personal iButton against a mounted reader to log in, instantly linking their identity to the vehicle's GPS data.
Uses the 1-Wire protocol for high-speed, interference-free communication with the GPS tracker's digital input.
The perfect solution for construction, mining, and industrial fleets where gear must survive rugged daily handling.