wireless bluetooth motor vehicle 4 TPMS Tire Pressure Sensors
How a Tire Pressure Monitoring System Works
As its name suggests, a tire pressure monitoring system is more
than a single part. In fact, TPMS involves a valve and a sensor,
and it's also important to know that not all TPMS systems are
created equal.There are two kinds of TPMS technology–indirect and
direct. Indirect TPMS approximates tire pressure indirectly by
using data from the vehicle's antilock brake system (ABS). Direct
TPMS provides a more accurate calculation of your tire pressure
using data gathered directly from a sensor placed inside each tire.
In either case, if a tire is detected to be underinflated by 25% or
more, an alert lights up on your dashboard. But with direct TPMS,
drivers are alerted sooner and–if the car is equipped with the
four-tire TPMS display–can even see readings for each tire. One of
the largest downsides of an indirect TPMS system is that it cannot
detect when all four tires are low in pressure, which can happen
quite frequently if tire pressure is not checked on a regular
|Tire Pressure Detection Range||100-900kpa (±10kpa)|
|Tire Temperature Detection Range||-30℃-80℃|
|Accuracy Of Tire Temperature||±3℃|
|Bluetooth Working Frequency||BLE4.0 2.4GHz|
|Bluetooth Transmit Power||0dBm MAX|
|Display Mode||APP (TPMS) for install (support Android 4.3+ & IOS 7.1+)|
|Working humidity||95% MAX|
|Battery Life||400 days or above|
A: What exactly does it mean when my TPMS warning light comes on?
B: If the TPMS warning light comes ON and flashes ON for one second
and OFF for three seconds, this indicates a malfunction with the
vehicle's TPMS system.
If the TPMS warning light comes ON and stays ON, take caution. This
means that one or more of your tires may have a low-pressure
condition. You should carefully slow the vehicle and park in a safe
and secure place. You should then inspect all of your tires and
check the air pressure. The correct air pressure for your vehicle
can be found on the placard, usually located on the inside door
A: Why does tire pressure change?
B: Many factors affect tire pressure including ambient temperature
changes and tire damage such as punctures. Tire pressure drops
about 1 psi for every 10°F drop in ambient temperature.
Additionally, tires can lose as much as 1.5 psi per month as air
escapes the tire and rim naturally.
A: What do I do when my TPMS light comes on during cold weather?
B: Does this really mean my tires are low? Any time that the TPMS
warning light comes ON, there is a possible low tire pressure
condition. Tire pressure can drop due to cold conditions, and this
drop in pressure may cause the TPMS light to come ON. As the tire
warms up under normal driving conditions, the light may turn OFF.
If the cold weather conditions cause the TPMS light to stay ON,
check the tire pressure (when tires are cold) and inflate the tire
to the proper pressure indicated on the door placard.
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