Unlike your in-laws, orders placed today for this product may not arrive by Christmas.
Air Guard Tire-Pressure-Monitoring Valve Stem Caps
These handy valve stem caps from Air Guard give drivers at-a-glance info on their tire pressure to ensure tires are never running with low pressure. The stainless steel caps automatically calibrate themselves when installed on a freshly inflated tire, and they feature bright red LEDs that illuminate whenever the pressure drops too far below the recommended level. This set includes eight caps—ideal for two-car or eight-unciycle families—that can be reused on different vehicles thanks to their easy-to-recalibrate sensors.
- Pressure-sensor valve caps
- Self-calibrating pressure gauge
- Illuminates red when pressure drops
- Durable stainless steel construction
- Helps improve fuel economy and extend tire life
- Can be recalibrated for different tire pressures
- Two-year standby battery life
- Operating temperature range: -40°F—275°F
- Set of eight
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