RS485 Modbus temperature probe - plastic connection head

Probe with plastic connection head - CAN protocol

2 to 3 weeks
All of this temperature sensors with stainless steel tube and plastic head with digital output CAN / CANOpen - SD 124 are designed for measuring the temperature of gaseous substances and liquids. In combination with the central support, the sensor is suitable for measuring the temperature in air conditioning ducts. The sensor / well combination is suitable for direct measurement in the pipeline. VShe temperature sensor is easy to mount thanks to the unique "S head" design.

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This sensor comprises a plastic head and stainless steel tube in which is placed a temperature sensor. In the head is a terminal block or a converter with a terminal block, to which the power cable intended to supply the sensor and to the digital output signal are connected via a cable gland and a connector. 

SD124, SD124K  CANopen / CiA DS 301 communication protocol, CAN bus communication

The temperature range of the sensors is defined in the table of technical parameters for each variant. The sensors comply with the protection class IP 65 in accordance with the modified standard EN 60529. 

The sensors are designed to operate in a chemically non-aggressive environment, the method of use must be chosen according to the temperature and the chemical resistance of the sensor head.


  • central plastic support
  • stainless steel etablowmowell JS 130
  • central metal support
  • screw with collar or cutting rings - if different immersion lengths of the temperature sensor are set


  • The manufacturer provides an EU declaration of conformity.
  • Calibration - The final metrological control - comparison with standards or working instruments - is carried out for all products. The continuity of standards and work measurement instruments is ensured within the meaning of article 5 of Law No. 505/1990 on metrology. The manufacturer offers the possibility of supplying the calibrated sensors.
Sensor type 
(K - with connector)

SD 124 
SD 124K

Output signal  CAN / CANOPen-CIA DS 301
Measuring range                  -50 to 150 ° C
Electronic precision *) ± 0,2 ° C
Sensor type / accuracy  Pt 100 / ± (0,3 ° C + 0,0005 | t |)
Supply voltage 15 to 30 V DC
Nominal supply voltage Un 24 V DC 
Consumption / supply current maximum: 500 mW, Standard: 300 mW
Working conditions 

ambient temperature: -30 to 70 ° C 
relative humidity: 
atmospheric pressure maximum of 100% : 70 to 107 kPa

Degree of protection IP 65 according to EN 60529, as modified
Response time τ 0,5 <9 s (in white water 0,2 ms -1 )
Standard rod length 70, 120, 180, 240mm
Standard rod diameter 6 ± 0,2 mm
Measuring rod material DIN 1.4301 stainless steel
Pressure resistance without PN 25 good 
with PN 63 good
Insulation resistance > 200 MOhm at 500 V DC, 25 ° C ± 3 ° C; humidity <85% 
Head dimensions 70 63 x x 34mm
Head material POLYAMIDE
Connector type  RSFM4-M12-Lumberg
Recommended conductor cross-section 0,14 to 1 mm 2
Weight min 200g

SD 124 probe diagram


Product Type
Protection sign
Maximum operating temperature
6 mm
tube length
70 mm
120 mm
180 mm
240 mm
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