Tire Pressure Realtime Warning Air Valve Indicators (2-Pack)

Pros: Very useful!
Can save you a lot of gas.
Appears to be be relatively precise.
The black part is actually metal!

Cons: Price is high.
These will probably get stolen very soon if you don't park in garage.
These is NOTHING digital about this device... DX should remove this - it's absurd...

Other: Get them to play with! At least you can brag to your friends (until they get stolen). :)

Pros: This exact item costs 25$ in Canada for a pair of 2; The price at deal extreme is FANTASTIC , and for the exact same things;
Very accurate; will save you a lot of money in fuel and you do not have to hurt your knees checking tire pressure all the time; the part is made of metal, so it is good quality;

Cons: These are easy to steal for people walking by; so far, mine have not been stolen, but someone could steal them easily from my car since they just screw on and screw off; perhaps a mini hex key can be used to lock these in future designs?

Other: EXCELLENT!

Pros: It's definetelly great to plug those in the tires and see that it really checks the pressure. one of mine was with 27psi and it went yellow very clearly.

Cons: The 4 pieces worked perfectly in verifying the pressure, including the one that showed up RED next morning when my tire was flat, and my #1 suspect is the device itself, for it's not able to fit all the way in the valve.

Other: It works, it verifies the pressure, but it also gets bored with all GREEN and leaks pressure just to be able to show RED

Pros: - reasonable price
- does what meant to do
- simplifies drivers' duty

Cons: - no cons in general
- perhaps could be a bit cheaper

Other: Useful thing. Recommended for everybody. Save you from need to make your hands dirty when trying to measure tire pressure.

Pros: These pressure reading valve caps are great! I've had them on for quite a while and they are very accurate. No reason to not recommend them. Just make sure you get the right set for the pressure your tyres need, otherwise you might end up showing Orange/Red when it should be Green. I have even brushed up against the kerb many times and they have not been damaged at all - they still work perfectly.

Cons: No "Cons" to speak of with these little things.

Other: I would buy more of these if someone steals them. Recommended - you can tell at a quick glance if your tyres need air.

Pros: Valves effectively indicate the pressure. I like it that is as simple as looking at the valve and see the green color. When you place them you can hear the air passing through the valve and filling it. Design is discreet since the color of the valve is black.

Cons: May be a little long, so you should be careful when parking near a sidewalk. If you live in a country like mine (Mexico) you should as well tight them with plyers to avoid any occasional robbery. Price could be cheaper.

Other: Buy them without hesitation.