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E+E Elektronik Humidity and Temperature Sensor for High Humidity and Chemically Polluted Conditions


The HTS801 is designed to meet the highest demands for long-term stable and accurate relative humidity (RH) and temperature (T) measurements in environments with constant high humidity and chemical contamination.

  • Measuring Range: 0…100 % RH /-80…180 °C (-112…356 °F)
  • Pressure range: Up to 300 bar (4 351 psi)
  • Outputs :0-1/5/10 V, 0/4-20 mA
  • Accuracy: ±0.95 % RH,±0.1 °C (0.34 °F)
  • Digital interface: RS485 with Modbus RTU/Ethernet-PoE with Modbus TCP
  • Supply :24 V AC/DC

Product Overview:

The EE-HTS801 comes in different probe models for various applications. These probes can operate in temperatures ranging from -80°C to 180°C and can withstand pressures of up to 20 bar (300 psi).
Automatic ReCovery (ARC) is available for all HTS801 types and is used to remove chemical pollution and thus eliminate
possible drift effects of the RH /T sensing element.

Key Features:

  • Highest measurement accuracy
  • High-end monolithic RH/T sensing element
  • Wide working ranges from -80 °C to 180 °C (-112 °F to 356 °F)
  • Pressure-tight probe up to 300 bar (4 351 psi)
  • Heating modes for temporary condensation or permanent high humidity
  • Automatic ReCovery (ARC) function to remove chemical pollution.
  • E+E proprietary coating for excellent long-term stability under harsh conditions
  • RapidX smart probe with included sensing element data
  • 5“ TFT colour display with push buttons and logging function
  • Two analogue current and voltage outputs
  • Error indication according to NAMUR
  • RS485 (Modbus RTU) or Ethernet-PoE (Modbus TCP) interface
  • Two alarm (relay) outputs
  • IP65 / NEMA 4X polycarbonate or stainless-steel enclosure
  • Calculation of all humidity related physical quantities.

Typical Applications:

  • Drying Processes for brick, ceramics, wood, concrete, polyester etc.
  • High-humidity storage rooms
  • Climate, test and curing chambers
  • Meteorology measurement for NMI‘s and ice-warning systems
  • Fuel cell and automotive test benches
  • Pharmaceutical and chemical applications

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Data Sheets