User's Manual

19 | P a g e
8 In-Car unit audio & LED alerts
In-Car unit will produce different tones and LED flashes for different situations. For
repetitive alerts, you can stop the alerts by pressing the In-Car unit side button once. In
case you have forgotten the location of the problematic tire, you can short press the side
button another time to re-produce the alert one time.
Wake up – unit will produce “di da” tone once with LED blinking sequentially for all
four tire indicators. This shows that In-Car unit is awake and operational.
Sleep – unit will produce “daaa” tone once. No LED blink. This shows In-Car unit is
going to sleep and not operational. In-Car unit goes to sleep to conserve battery when car
is not moving for a long time. However the sensors will still be operational 24x7 and
continue to monitor and alert to your handphone in case of flat tire.
Soft alert – unit will produce “di di di di di” tone once and repeat every 3 minutes. LED
will blink for 5 seconds on problematic tire. This alert is for non-emergency situation
such as:-
 Tire pressure slightly exceed above or below user pre-set limits. It is not
dangerous to continue driving.
 Sensor battery low. Once notified on low sensor battery, please remember
to change the battery at your convenience. Do not leave the unit to
continue operating under low battery for a long time.
 In-car unit battery low. LED blink will be on the status LED, not on the
tire indicator LED. Once notified on low sensor battery, please remember
to change the battery at your convenience. Do not leave the unit to
continue operating under low battery for a long time.
 Signal low or sensor missing. For this situation, the tone will repeat every
5 seconds instead of 3 minutes to inform user of a possible missing sensor.
Emergency alert – unit will produce “di da di da di da” tone once and repeat every 5
seconds. LED will continue to blink on problematic tire. This alert is for emergency
situation such as:-
 Tire pressure is too high or too low. It is not recommended to continue
driving without investigating the condition of the tire. Please stop the car
at a safe location to check the condition of the tire.
 Tire temperature is too hot, exceeding 60
o
C or 140
o
F. It is not
recommended to continue driving without investigating the condition of
the tire. Please stop the car at a safe location to check the condition of the
tire. Note that the measured temperature may be lower by 10
o
C or 50
o
F
compared to the in-tire air temperature when the car is moving, due to air
cooling effect on the tire valve.