TPMS1209C01 User Manual
Page 22 of 23
X. Specifications
Operating Temperature of Monitor: -30
℃
～
+70
℃
Operating Temperature of Transmitter: -30
+85
℃
℃
Pressure Monitoring Range of Transmitter: 0
～
6 bar / 0~87 psi
Pressure Monitoring Precision: ±0.1 bar/±1.5 psi
Modulation Type: FSK
Mid-Frequency: 433.9 Mhz
Transmitting Power: -10 dbm
Receiving Sensitivity: -105 dbm
Input Voltage: 5V
（
cigarette lighter adapter
）
1.5V×2(AA batteries)
XI. Special Annex
1. LCD operating temperature
For all of the LCD, the lowest limitation operating temperature is -30
℃
, the upper temperature limit for
working mode is 70
℃，
for storage the temperature limit is 85
℃
. This is determined by the character of the
LCD. If the LCD works under lower temperature (for example, -30
℃
) for a long time, the LCD may be
destroyed.
In order to use the LCD properly, we strongly recommend the user power off the display if the temperature
inside the vehicle will be lower than -30
℃
for a long time.
2. Checking and inflating the tire pressure regularly
In order to ensure that your tires remain at optimum pressure levels, it is strongly recommended that the
user check and adjust the pressure of each tire once a month.
3. How to change a new Transmitter
If one of the Transmitters is broken or the Transmitter fails to work, you should change a new Transmitter
for the tire. The broken Transmitter will not influence the other Transmitters’ operation, only the broken
one needs to be changed.
XII. Frequently Asked Questions
1
．
Q: Why is it necessary to do a periodic check on the pressure of a tire with TPMS?
A: As you drive, tires can be damaged or become unbalanced over time. Checking your tire on a
regular basis will ensure that it is functioning properly and safely.
2
．
Q: After installation, when changing the batteries or resetting the Monitor, the pressure information
doesn’t appear immediately.
A: Please wait for about 6 minutes. If nothing happens, reset the Monitor Display (turn it off and on)
and wait for another 6 minutes.
3
．
Q: Sometimes the LCD screen is not very clear.
A: This usually happens when the temperature inside the car is too low. When the temperature returns
to normal, the display will become clear again.
4
．
Q: Blurriness appears on the LCD screen, or there the LCD screen is blank. Sometimes the audible
alarm also can be heard.
A: This is usually caused by batteries of the Monitor Display being low on power. Change the
