Questions about our products?

The EE300Ex temperature transmitter is dedicated for measurement in explosion hazard areas. It complies with the classifications for Europe (ATEX), International (IECEx), USA / Canada (FM) and China (NEPSI) for flammable gas dust applications.

The intrinsically safe EE300Ex can be installed in the explosion hazard area even in zones 0 / 20. The 2-part enclosure facilitates eady installation and dismounting for calibration without time-consuming wiring. The robust and easy-to-clean stainless steel housing is appropriate for use in the pharmaceutical and chemical industries. The intrinsically safe temperature transmitter feature two 4-20 mA output in 2-wire technology.


  • For gas and dust applications
  • Direct mounting in zones 0 / 20
  • Maximum precision up to 200°C (392 °F)
  • Pressure-tight up to 20 bar (290 psi)
  • Wall mount or with remote probe models

Typical applications

  • Chemical industry
  • Pharmaceutical industry
  • Explosion hazard storage rooms
  • Power stations
  • Grain mills
  • Oil platforms


Technical data

  • -70...200 °C (-94…392 °F)

    Measuring range
  • ±0.2 °C (±0,36 °F)

  • 0.1...20 bar (1.45…290 psi)

    Pressure range
  • 4-20 mA (2-wire)

  • 24 V DC


Product inquiry

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  • Which is the difference between "intrinsically safe" (IS) and "explosion proof" (XP)?

    Both IS and XP are based on limiting the available electrical energy in explosive atmosphere. IS devices limit the electrical energy to a non-incendive level so that sparks cannot occur. XP devices contain any spark which may occur, and withstand escaping warm gas.

  • May I change or remove the label of my ATEX device?

    No, this is not allowed. The ATEX devices must carry the original manufacturer labels at all times.

  • What calibration certificate is included in the standard scope of supply of the ATEX E+E humidity and temperature measurement devices?

    The standard scope of supply of ATEX E+E humidity and temperature measurement devices includes an inspection certificate according DIN EN 10204 - 3.1. For details on calibration certificates please see page 5 in

  • Can E+E supply an accredited calibration certificate with the ATEX transmitter?

    Accredited calibration certificate for ATEX E+E humidity and temperature measurement devices is available upon request, please see our calibration website

  • What is the difference between a 2 wire and a 3 wire current output?

    Transmitter with "two-wires" technology receive the power from the process, and the signal is carry on return wire (closed current loop). With technology "three-wires" the power supply is separate from current output: 2 wires are the power supply and third carry the signal.