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  1. Humidity Meters

Michell Instruments WM291 RH & Temperature Transmitter

Digital relative humidity & temperature transmitter, wall mount, includes the interchangeable Hygrosmart module.

Michell Instruments WM291 RH & Temperature Transmitter
Michell Instruments WM291 Humidity & Temperature Transmitter
Retired products cannot be ordered
The Michell Instruments HygroSmart WM Series RH Transmitter is the recommended replacement

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  • By Michell Instruments
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Product Specs
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Call 1-800-884-4967 or email sales@instrumart.com. Open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET.
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Overview

Features

  • RH range: 0 to 100%
  • RH accuracy: less than ±2% RH (5-95% RH)
  • Temp range: -30 to 70°C (-22 to 158°F)
  • Temp accuracy: ±0.4°C (±0.72°F)
  • Three outputs
  • Based on the interchangeable Hygrosmart module
  • Metric or US measurement units selectable through software
  • Delrin probe
  • Aluminum die casting housing
  • IP65 (NEMA 4 level)

Description

The Michell Instruments WM291 Relative Humidity & Temperature Transmitter includes the interchangeable Hygrosmart module. The interchangeable module lets you recalibrate the transmitter simply by replacing the sensor head with the Hygrosmart module. As a result, maintenance costs are greatly reduced and down-time is minimized.

The WM291 has a relative humidity range 0 to 100% with an accuracy of less than ±2% RH (5-95% RH). The temperature range is -30 to 70°C (-22 to 158°F) with an accuracy of ±0.4°C (±0.72°F). The WM291 has metric or US measurement units selectable through software.

Documents

Spec Sheets

  • Michell Instruments WM291 Humidity & Temperature Transmitter Datasheet PDF (206 KB)

Links

  • All possible part numbers

Need Help? Call a Calibration engineer at 1-800-884-4967

We're open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET

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Senior Applications Engineer
30 years at Instrumart
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Applications Engineer
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Applications Engineer
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Senior Applications Engineer
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Applications Engineer
13 years at Instrumart
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Applications Engineer
3 years at Instrumart
Fabian M. headshot Fabian M.
Applications Engineer
Angelo S. headshot Angelo S.
Cal & Pressure Engineering Lead
6 years at Instrumart
John A. headshot John A.
Senior Applications Engineer
19 years at Instrumart
Shawn S. headshot Shawn S.
Senior Applications Engineer
30 years at Instrumart
Nate H. headshot Nate H.
Applications Engineer
Liam W. headshot Liam W.
Applications Engineer
2 years at Instrumart
Mike C. headshot Mike C.
Senior Applications Engineer
24 years at Instrumart
Mark D. headshot Mark D.
Applications Engineer
13 years at Instrumart
Brynn O.S. headshot Brynn O.S.
Applications Engineer
3 years at Instrumart
Fabian M. headshot Fabian M.
Applications Engineer

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Michell Instruments WM291 RH & Temperature Transmitter
Michell Instruments WM291 RH & Temperature Transmitter
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