Ensure quality, we do not make explosive profits as long as the pro to the force, we insist on profit. Welcome to contact us! Tachograph installation tips and precautions 1. When unpacked, do not hurt the body with a hard object, because the body shell is plastic or rubber material. Do not lay a hand camera, camcorder to avoid leaving fingerprints affect results. 2. Before installing, make sure there is no water needs to be fixed to the car dashboard or on top of the glass, there is water, then do not easily fixed, or is fixed is not strong, easy to fall off. 3. If you have some basic car modification can install yourself, if not, ask a professional person to install. First, because the line is connected properly will cause tachograph fault, then there is a wiring technology live, after all, a professional who has experience. 4. Install the tachograph when the attention away from the operating range of the airbag, which is very important. Otherwise, the case of an accident, personal safety would produce fatal injuries. 5. SD memory card installed or TF card must pay attention to the mounting direction, otherwise the data is saved down.