Features: Different sensors facilitate to monitor different data, such as fuel lever, speed, longitude, latitude, altitude, temperature, RPM, acceleration, etc. If the model is driven by battery, users could use in-built or external battery voltage sensor to monitor model’s battery voltage. Specifications: Measurement Levels: Empty, 1/4, 2/4, 3/4, FullLength of the Sensor Film: 62mmInstallation: