HMP4 Process Humidity and Temperature Probe 100Bar/180°C, Modbus, 0.8%RH Accuracy - Vaisala Online Store

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HMP4 Process Humidity and Temperature Probe 100Bar/180°C, Modbus, 0.8%RH Accuracy

HMP4 Humidity and Temperature probe is designed for applications that involve high pressures, such as compressed air systems and pressurized industrial processes. The operational pressure is up to 100 bars and operating temperature range -40..+180 °C (-40..+356 °F)

The HMP4 can be used as stand-alone Modbus RTU digital transmitter, or used together with INDIGO201 analog signal transmitterr or INDIGO202 Modbus RTU digital transmitter. The length of the high-temperature tolerant probe cable is two meters. The probe can be connected directly to the INDIGO transmitter or with a M12/5M extension cable up to 30 m

The probe is equipped with HUMICAPR2 composite sensor. Sensor purge functionality improves measurement performance under applications where the probe is exposed to high chemical concentrations

Each probe is individually pressure tested. Process connection is M22x1.5 or NPT1/2""

See Indigo compatible products

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Included in the package:

  • HMP4 Humidity and Temperature probe
  • M22x1.5 and NPT1/2"" process fittings
  • Traceable 5-point calibration report
  • Mounting clips
  • Calibration adapter for HMK15 calibrator
  • Quick guide

Not included in the package:

  • INDIGO201 or INDIGO202 transmitter, to be purchased separately
  • M12/5 extension cable

HMP4 Process Humidity and Temperature Probe 100Bar/180°C, Modbus, 0.8%RH Accuracy
INDIGO HMP4 Humidity and Temperature Probe for High Pressures
Standard delivery time for single unit: 1 week
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Warranty: 24 months
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Part no. HMP4

Quantity Price
$2246.00 + VAT

Detailed information

Measurement parameter(s)Relative Humidity, Temperature, calculated humidity variables
Measurement range0..100 %RH, -40..+180 °C
Measurement accuracy+/- 0.8 %RH +/-0.1 °C (0.18 °F)
Operating temperature-40 ... +60 °C probe body; -40..+180 °C (-40..+356 °F) probe head
High temperaturePressurized process
Operating pressure100 bar
Operating voltage15..30 VDC
Digital outputsModbus RTU (RS-485)
Housing classificationIP66
Links See full specifications on

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