Pam truck #35357 hits parked truck, Loves, Emerson, GA

Video from a Viofo A119V2 dash cam.

a119v3a Viofo A119V3 pre-release video sample, Day

Daytime video sample from a Viofo A119V3 dash cam.

The previous Viofo dash cams have been reliable, and one of my first choices for use in large trucks.    The A119V3 should retail around $120, US, with the GPS mount.   It should arrive in online retailers in the next few weeks.      The current, older version, the A119V2, is still a good choice, and a little cheaper.   The V3 should have better night video than the V2, but I have not been able to come up with many night video samples to compare, yet.

You can see your speed as determined by the GPS embedded in the bottom left of the video.   I prefer to have my speed displayed, I drive very modestly.    Some drivers worry about the GPS on the  video  'telling' on them, if the police seize the cam.    I may be a few MPH over the speed limit, I don't  worry about it.  It will be hard for the cops, or me, to prove the $10 GPS module option is accurate enough to write a ticket on, or as defense against a claimed speed infraction unless it is totally ridiculous.       In casual scrutiny, the GPS speed can show you are adjusting your  speed to sudden traffic conditions.   
If you're worried about having a record of you speeding too often, make sure you use a smaller memory card in your cam,  8 GB, 16 GB, etc.   A 64 GB card yield around 8 hours of coverage.
The A119 will use a 128 GB card, also, reliably.

Pre-release Viofo A119V3 Video samples

The Viofo A119V3 will be hitting online, and other retailers, soon, but I was shipped one recently for testing and review.     Price has not been set, yet, but should be higher than the current A119V2.    Night performance should be superior to the V2.
All previous versions of the A119 have been reliable, and a good value.  I've used an A119 of various versions in a tractor trailer for 400,000 miles or so, and an A118 for a few years before the A119 was introduced.
I have always recommended the A118, or A119 for use in trucks,  the V3 appears to be no exception.

Here's a video sample, at dawn, of the A119V3:

A119V3, dawn

Here's the A119V2, with the same footage:

A119V2 Dawn, footage sample