Fire Fly Low Pressure Valve Cap Flashers
The FireFly low tire flasher helps visually identify low tire pressure by recording the tire pressure of your tire when first installed. Once set they will flash if the pressure drops. (You'll want to use a good tire pressure gauge to set the tire pressure that you want to maintain.)
Once you have set your desired tire pressure and install the FireFly, it will record the current tire pressure and then flash if the tire pressure falls below 4 lbs. from that initial pressure; and it will flash for up to 3 weeks.
Low pressure is one of the most common causes of excessive and irregular tire wear and a leading causes of tire failure. The FireFly low pressure tire sensor helps you keep your tires at the right operating pressure and so extend tire life. Should the pressure fall, the FireFly gets your attention from several feet away with it's flashing indicator light.
NOTE: The battery shelf life in the FireFly low pressure tire sensor is two years and is not replaceable. Simply install a new set of FireFly's when the batteries lose their charge.
Each package contains two valve stem flashers
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