Brand: SENS4

Product Code: TDM-1

Availability:Out of stock


  • Class AA accuracy
  • 4-20 mA programmable current output0-10 VDC programmable voltage output
  • Robust 316 stainless steel design
  • IP67 enclosure for harsh environments
  • Fast response to temperature changes
  • Compact and low mass sensor probe
  • Optional solid-state setpoint relay for process control
  • Dual sensor design

The TDM-1 series temperature transmitter is designed for gas and liquid measurement in a variety of industrial applications.  Its modular compact design offers a unique combination of high measurement performance, flexible configuration and a robust stainless steel design.

Temperature sensor technology

Traditional temperature measurement is based on thermistor, thermocouple or RTD sensors. The TDM-1 is based on semiconductor diode junction sensor technology. The sensor technology offers high measurement accuracy and repeatability in combination with a fast response to temperature changes.   

The novel dual sensor probe design offers two individually calibrated sensors for improved measurement stability and redundancy in critical applications.



  • Food and beverage processing
  • Sterilization process SIP and CIP
  • Water treatment and supply
  • Oil and gas
  • Wind turbines
  • HVAC installations
  • Chemical processing
  • Hydraulic oil 
  • Engine gearbox oil
  • Plastic molding

    Download brochure here




    Measuring range
    -50 to +150 °C (-58 to +302 °F)
    +/- 0.1 °C (Class AA, DIN 60751)
    Measuring principle
    Dual semiconductor diode junction
    Sensor probe diameter
    Ø3.0 mm (0.12 inch)
    Sensor probe length
    15-140 mm (0.59 to 5.51 inch)
    Output signal (Voltage version)
    0-10 VDC (Programmable scaling with S4-Connect™)
    Output resolution (Voltage version)
    16 bit / 150 nV
    Output signal (Current version)
    4-20 mA(1) (Programmable scaling with S4-Connect™)
    Output resolution (Current version)
    16 bit / 244 nA
    Solid state relay contact rating (optional)
    250 mA, 50 VDC / VAC peak

    Environment conditions

    Operating ambient temperature
    -40 to +100 °C
    Media temperature
    -50 to +150 °C
    Storage ambient temperature
    -40 to +125 °C
    Maximum media pressure (2)
    200 bar / 2,900 PSI / 20 MPa
    Mounting position
    Protection rating, EN 60529/A2:2013
    IP67 (3), IP65 (4)
    Humidity, IEC 68-2-38
    98%, non-condensing

    Power supply

    Supply voltage 
    12-30 VDC
    Power consumption (Voltage version)
    240 mW (Max)
    Power consumption (Current version)
    600 mW (Max)
    Reverse polarity protection
    Overvoltage protection
    Internal fuse
    100 mA (Thermal recoverable)


    SS 1.4404 / AISI 316
    Electrical connector DIN 175301-803A
    PA Nylon
    Electrical connector M12 IEC 61076-2-101
    PA Nylon, Nickel plated Zinc alloy
    Process connection
    SS 1.4404 / AISI 316L
    Process leak tightness (ISO 27895:2009)
    <1·10-9 mbar·l/sec.


    EN61000-6-2, EN 61000-6-3Temperature directive 97/23/CE
    RoHS compliance
    Directive EU 2015/863
    1. 4-20 mA NAMUR NE43 compliant signal.
    2. Please consult with Sens4 application support (email: to select the best option for the application. An assessment of stresses induced by fluid flow might be needed (following the guidelines of ASME PTC 19.3 TW – 2016).
    3. IP67 for product versions with IEC 61076-2-101 M12 connector.
    4. IP65 for product versions with DIN EN 175301-803 A connector.