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Why to Choose Koolertron IP Cameras at KoolerBuy
Tips for Choosing Car Dash Camera
There are several basic features of a vehicle recorder: take photos, delay power off, motion
detection, and G-sensor. Car Dash camera is not only a video recorder but also a camera. Main
stream products have the shooting feature of 10MP camera. Normally, the higher the pixel is, the
clearer the details are. A higher pixel cam will take the license plate and colliding parts clearer. It
now can realize the recording of automatic. You can set it turning on while started and off while
stop. However, we may get encounter into some sudden accidents while stop the car, so we need
the function of delay power off. Several seconds or minutes will be enough.

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Compared with the previous two, the motion detection is not as necessary, yet sometimes it has
special purpose. The principle is not complicated: when we parking in the lot or other places, the
recorder will get into the status of standby for the reason of image static. If the scene is changing,
the cam will start to record. This function is aiming to avoid the vandalism. There are two fatal
disadvantages: not suitable for crowd places and power supply. Recommend to turn off this
function.
G-sensor is important to avoid the content loss of accidents. If there are crashed or other
weightlessness conditions, the recorded video will be locked. Even if you don’t check the data for
a long time, the locked video will not be covered.
High pixel is not all feature of a cam. For instance, the data of iPhone 5S is only 8MP, but it
obvious that all dash cams can’t get the effect of iPhone. The biggest parameter that related to the
image quality is the sensor. There are two types in the current market: CCD and CMOS. CCD is
better but also more expensive and power consumption. In fact, CMOS dash cams are enough for
the majority conditions.

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Voice recording is useless but may also harm to your privacy. Even you purchase one car DVR
with G-sensor and voice recording. I’d like to recommend you to turn it off.
Source
from:
http://blog.koolerbuy.com/how-to-judge-the-good-and-bad-of-a-vehicle-recorder.html