Technical manual
（1）Module information
Product name：TPMS SENSOR
Model name：TMSS8E4
Brand：BH SENS
Manufacture Name：Baolong Huf Shanghai Electronics Co.,Ltd.
Address: No. Building 3, Lane 1099, Zhangjing Road, Dongjing Town, Songjiang District, Shanghai
City, P.R. China
Power：Battery（3.6V）
Rated current：＜10mA
Operating frequency ：433.92MHz
Modulation Frequency deviation：±45KHz
Transmit Power：＜5 mW
Modulation：FSK
RF code：Manchester
Antenna gain：-2.2dBi
Receiver Low frequency：125kHz
Modulation：ASK
LF code：Manchester
Operating temperature range：-40℃~+125℃
Software version：V1.0
Hardware version：V2.0
The module is powered by 3.6V battery, the RF center frequency is 433.92MHz, the modulation
frequency deviation is ±45KHz, and the modulation mode is FSK. In normal operation mode, the
sensor function module will periodically detect the tire internal pressure and temperature information.
The real-time data collected is sent to the receiver by RF circuit. In addition, the pressure, temperature,
sensor ID and other information inside the tire can be read in real time through the hand-held low-
frequency tool.
（2）Diagram introduction
Description：
1. This module contains a highly integrated chip, which includes microprocessor core, pressure sensor,
temperature sensor, acceleration sensor and RF function module. The RF center frequency is
433.92MHz.
2. The module is powered by 3.6V battery. During the working period of the sensor, the
microprocessor periodically reads the pressure and temperature information inside the tire through the
pressure sensor and temperature sensor.
3. This module uses crystal oscillator circuit recommended by chip to provide accurate clock
frequency for microprocessor.
4. As the core of the sensor, the microprocessor sensor function module is responsible for collecting
tire pressure, temperature, acceleration and other information.
5. The sensor contains low-frequency function module, which is used for hand-held tools to read real-
time data of sensor or upgrade software.
Please take attention that changes or modification not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired
operation.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance 20cm between
the radiator & your body.
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to
the following two conditions:
(1) this device may not cause interference, and
(2) this device must accept any interference, including interference that may cause undesired operation
of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radioexempts
de licence. L'exploitation est autorisée aux deux conditions suivantes :
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est
susceptible d'en compromettre le fonctionnement.
This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance 20cm between
the radiator & your body.
ce matériel est conforme aux limites de dose d'exposition aux rayonnements, CNR-102 énoncée dans
un autre environnement.cette eqipment devrait être installé et exploité avec distance minimale de 20
entre le radiateur et votre corps.
