Review on EXELAIR by Milton EX448DIG Digital Tread Depth Gauge by Joe Jordan

Don't waste your money. Too bad I didn't read the reviews before buying. It's read in metric units or decimal inches, so you'll have to try converting it to 16 inches. Those who have time to find out just want to read the tires quickly. I went to a big store and bought one that, like all tires, shows 16th. Also, I found incorrect readings on several treads so do not trust this product to read tires correctly.