Starting at $1,047.00
  • Usually ships in 6 weeks



  • 0 to 100% relative humidity measuring range
  • -40 to 248°F (-40 to 120°C) temperature measuring range
  • Probe length options:
    • 7.9in (200mm)
    • 15.8in (400mm)
  • Stainless steel construction
  • RS485 interface with Modbus RTU
  • Flexible high temperature cable with M12 connector
  • Filter options:
    • Metal grid, polycarbonate body
    • Stainless steel sintered
    • PTFE
  • Proprietary sensor coating (with sensor leads protection optional)
  • IP66 protection rated


The E+E HTP501 humidity and temperature probe is a reliable and cost effective probe for measurement of relative humidity (RH) and temperature (T). The IP66 rated stainless steel construction makes this ideal for use in demanding applications such as drying processes. Besides the measurement of RH and T, the HTP501 calculates all humidity related physical quantities like dew point temperature (Td), absolute humidity (dv) or mixing ratio (r).

The HTP501 employs a high end E+E humidity sensing element which stands for high RH measurement accuracy over the entire temperature working range -40 to 120°C (-40 to 248°F). The E+E proprietary coating of the sensing element provides exceptional long term stability even in harsh operating environments.

The HTP501 is user configurable through the free PCS10 product configuration software and the optional Modbus configuration adapter (sold seperately).