Consumer Reports puts cheap tire monitor under pressure
They bought a set of Air Alert Valve Caps for $25 and put 'em to the test. These caps indicate a four pound drop in pressure by lighting up an LED, a pretty good idea.
You can read for yourself all the pros and cons, but the overall verdict was that they worked, but CR was concerned about durability and accuracy due to temperature-related fluctuations in tire pressure.
[Source: Consumer Reports]
- Most and least efficient car companies
- Fastest-depreciating cars in the United States
- Find and compare 2017 Models