Compatible with most DSLR cameras
Pasting design
One Package Size 35cm * 19cm * 23cm / 13
the specific distance is related to the quality of the cable)
Place the chip and optocoupler on the top of the alignment
P20 OBD2 + GPS Mode Car Head-up Display HUD Overspeed / Speed / Water Temperature Alarm, P20 % Modified Square Wave Compatible with most DSLR cameras1. Screen size: 3. 5inch 2. Product size: 90x53x26mm 3. Bare metal weight: 75g 4. OBD mode display information: driving speed, engine speed, fuel consumption, water tank temperature, voltage, mileage measurement (word driving miles and single driving time, manual automatic brightness adjustment, mile switching). Alarm: Overspeed alarm, high speed alarm, fatigue driving reminder, low voltage alarm, high water temperature alarm, engine failure alarm,