Firefly Low Tire Flasher 10-pack Programmable Pressure Review

I'm a sucker for anything that lets me avoid the hassle of checking tire pressure.So I've considered an aftermarket tire pressure system (but not for long, once I realized how complex the installation is) and I've bought the cheaper screw-on caps that show green or red through a little window, and been very dissatisfied.Among other things, they tell you (only after you've bought them) not to get them wet.That's hard to do in heavy rain or a car wash.

These Firefly flasher caps are ruggedly built (metal!) and easy to install.My only gripe was that they didn't work.

So I called the 800 number for the merchant who said, "Oh yeah, when we got the first batch in we thought they were all defective, but then we found out you have to screw them on all the way and that's why they included that little wrench."

Why the instructions don't mention that, and why they don't tell you what that little tool is (it's a wrench, ok, but not like one you've seen before) is beyond me.But not to quibble.

They seem like a good product, they test ok (unscrew a few turns and they blink brightly) and maybe they'll actually work over the long haul.If so, I think I like them.

I'll know a lot more in 6 months.

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Product Description:
Alerts driver to tire pressure loss of 4 lbsFlashing red LEDEast to install. Just screw them the tire stemGood for at least 2yearsDon't get stuck on the highwayBright red flashing LED

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