Wireless brake pad temperature transmission module


The wireless brake pad temperature transmission module is a device that can detect the temperature of the brake pads in real time. The device is divided into a transmitter and a receiver. The transmitter detects the temperature of the brake pads in real time through a 4-channel/wheel thermocouple, transmits the temperature wirelessly to the receiver, and the receiver outputs the temperature through the CAN protocol. The equipment has the advantages of high precision, small error, high real-time performance and wide measurement range.


1. 16-channel multi-type thermocouple input, support various types of thermocouple selection;

2. The accuracy error is 0.5℃;

3. The thermocouple input terminal provides ±45KV overvoltage protection;

4. Each channel has internal cold junction compensation;

5. The temperature of the detection point is sent to the receiving end wirelessly, and the CAN message is output.

                                                                           System parameters

Number of channels 

16 (four transmitters, each with 4 thermocouple   channels)

Maximum input overvoltage protection 


ADC type 

19-bit ADC

Power supply voltage

Transmitter: 3 18650 lithium battery power supply   Receiver: +6 .. +42V power supply

Internal sampling rate 


Measurement data update rate


Signal filtering 

Low-pass filtering 50HZ

IP rating 


Input socket 

mini TC

Transmitter and receiver wireless   communication frequency 


Communication protocol 

CAN 2.0B


                                                                         Channel temperature

Thermocouple Type

 K, J, N, R, S, T, E, B

Type K measuring range 

-100°C ..+1372°C

Type J measuring range 

-210℃ to +1200℃

Type N measuring range 

-200°C to +1300°C

Type R measuring range 

-50°C to +1768° C

Type S measuring range 

-50°C to +1768° C

T-type measuring range 

-200°C to +400° C

Type E measuring range

 -200°C to +1000° C

Type B measuring range 

-250°C to +1820° C

Full Scale Linearity Error

TA=+25℃ .. ±0.05%FS

TA=-20℃ to +85℃ .. ±0.15%FS

TA=-40℃ to +105℃ .. ±0.2%FS

TA=-40℃ to +125℃ .. ±0.3%FS

TA=-55℃ to +125℃ .. ±0.35%FS

Linearization of sensor characteristic lines 

Numerical interpolation

Cold Junction Compensation 

±0.7°C (max, -20°C to +85°C) Cold Junction Internal Compensation   Accuracy


                                                                           Device connection

CAN / power supply 

LEMO 0B, 5-pole

Communication protocol 

CAN 2.0B