1. US Federal Law Minimum for factory tint on Vehicle is 70%

2. Light dust or water spots will impact the reading on the Tint Meter.

3. The Tint Meter should display a range of plus or minus 8% points of the reference standards if it is working properly

4. Test reference samples are included with every Laser Labs Tint Meter for verifying accuracy

5. For officer safety, you should open all doors that are being tested.

6. Typical factory auto glass is 20% to 30%.

7. The Tint Meter requires monthly maintenance.

8. A low battery could give an improper reading.

9. Laser Labs Inc. can re-certify Tint Meters on a yearly basis if required by your state.

10. A reading of 100% would be air only. 0% would be totally black.

11. A Tint Meter compares the amount of light passing thru the glass to the amount of light with no glass present and divides the two readings creating a percentage measurement.

12. Readings of a Laser Labs Tint Meter arte traceable to N.I.S.T.(National Institute of Standards and Technology)

13. The following are probable cause to suspect a tint violation,

The drivers face is only a silhouette, then it is probably illegal in all states.

14. VLT is a measure of light and stands for Visible light transmitted

15. What percentage is this window

50%

16. What percentage is this window

30%

17. What percentage is this window?

70%

18. What percentage is this window?

10%

19. What percentage is this window?

20%

20. The following are probable cause to suspect a tint violation,

The window looks darker than the reference samples included with the meter, it is probably illegal.