1. How to connect vehicles?
Answer: OBDII
2. How does the product read the data of the vehicle?
Answer: Sensor the Data Processing Unit(DPU)
3. How can the display read the data from the sensor?
Answer: DO903 is connected OBDII,Not have sensor
4. Why not use sensor?
Answer: Because OBDII and the sensor read different data
5. How bright is the LED?
Answer: Switch between "ON" and "OFF". (When the LED is selected
"ON", the four
pairs of LED lights on the front of the dashboard will light up as
the RPM increases.
6. Is your product data accurate?
Answer: Our products are just ECU porters, and the real and
effective data is based on
the data provided by ECU.
7. Where is your factory located?
Answer: Wenzhou , Zhejiang , China
