Features： 1、Made of high quality material, durable and practical. 2、Suitable for electric bicycles. 3、The main part of the instrument and the operation buttons adopt the lower structure design, makes the operation more reasonable and convenient. 4、Applicable voltage, 24V‑36V‑48V automatically recognized and compatible. With USB interface. 5、Professional manufacturing, stable performance and high reliability. Specification： Condition: Item type: LCD Instrument Material: blend Color: As picture shown Size: Approx. 9.5x6.5x3cm/3.7x2.6x1.2in Weight: Approx. 209g  Applicable voltage: 24V-36V-48V automatic identification and compatibility 1. Data display: display driving speed, unique mileage and accumulated mileage, driving time, auxiliary equipment, engine power and temperature, battery voltage and charging status, braking status and ambient temperature used and other bicycle parameters; 2. Intelligent power supply: truly reflect the battery power, record power consumption in real time, and ensures the driving distance; 3. Gear configuration: Multi-gear switch and automatic power-saving auxiliary gear can restore the stop status when power on; 4. Parameter setting: It has series user parameter setting functions, motor parameters, speed measurement parameters, speed limit parameters, power parameters, power auxiliary control parameters, minimum voltage controller and maximum current parameters, and other operating models for adjusting settings; 5. Data view: users can view historical records and clear the corresponding driving data, please refer to individual or cumulative driving time, mileage, maximum speed and average person driving speed; 6. Vehicle servo actuator: with 6KM/h boosting function, the boosting sign will flash during driving, and the rider can use it while driving the vehicle, so that the vehicle can easily save effort; 7. Cruising and constant speed: Through the configuration and display of cruising, the speed of the vehicle is automatically maintained, so that the vehicle runs at a constant speed; 8. Driving at night: with backlight LCD display and front light switch control function, you can turn on the instrument and the backlight of the front light when driving at night; 9. Password setting: with three-digit power-on password setting; 10. Automatic warning: If a vehicle failure occurs, you can generate different failure codes to facilitate vehicle inspection and maintenance. With temperature display function, used for motor operation, can achieve over temperature alarm and motor protection; 11. It uses five-line digital communication, the instrument has good compatibility and interchangeability, different instruments can be changed, and parameters can be directly copied. 12: This product can only be used with Quantum controllers. Package List： 1 x Instrument  1 x Mounting bracket 4 x Spacer 2 x Screw 1 x Instruction