Calibrate the window tint meter anytime it does not measure test glass within stated specifications see Checking Calibration above. More frequent re-calibration on a Yearly, Quarterly, Monthly, Weekly, or Daily schedule is an acceptable practice if required by your organization or regulating body.
How accurate are window tint meters?
The Tint Meter is accurate to plus or minus 2 percentage points of true visible light transmittance (VLT). For example, a 32% meter reading means the light transmittance could be between 30% and 34% Please take this measurement tolerance into account when using the meter.
How can I tell what percent my tint is?
Simply multiply the VLT value of the film and the VLT of the original glass. So, for example, if the VLT of the film is 6% and the factory VLT is 70%, the final tint percentage after installing the film would be 4.2% (6×70)/100.
How do you know what level your tint is?
Place the tint meter on the window by sliding it onto the partially rolled down window. The tint meter has a slot on it that slides onto a window. Then, read the digital display on the tint meter. This will give you your exact tint percentage, or opacity rating.Jul 22, 2020