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Vaisala Hm70 Thermohygrometer Meter with Rechargeable Battery and Software

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Vaisala Mfr # HM70D4X1A0EB – Item # EW-37301-40
Dual probe input for multi-parameter measurement
  • Store 2700 data points—download later to your PC via RS-232 interface
  • Display measurements numerically or graphically
  • Three probe types available; tailor the meter for your application

SPECS & DESCRIPTION

Specifications & Description

  • Min RH Range (%)0
  • Max RH Range (%)100
  • RH Accuracy±1% RH
  • RH Resolution (%)0.01%
  • Min Temperature (° F)-4
  • Min Temperature (° C)-20
  • Max Temperature (° F)140
  • Max Temperature (° C)60
  • Temperature Accuracy±0.36°F (±0.2°C)
  • Temperature Resolution0.1°
  • Wet BulbYes
  • Response Time8 seconds
  • Display TypeLCD
  • OutputUSB
  • Data LoggingYes
  • BatteryNiMH Battery (rechargeable)
  • Power (VAC)115
  • Power (Hz)60
  • Height (in)7
  • Width (in)3
  • DescriptionHm70 Thermohygrometer Meter with Rechargeable Battery and Software
NIST Traceable Calibration

Key Features

  • Store 2700 data points—download later to your PC via RS-232 interface
  • Display measurements numerically or graphically
  • Three probe types available; tailor the meter for your application

More About this Item

Vaisala HM70 series meter measures temperature and humidity, plus calculates dew point, wet bulb, mixing ratio, absolute humidity, enthalpy, and water vapor pressure. It offers six different languages in display. Log three parameters into meter memory while displaying data in numerical or graphical fashion. View graphic trends of any parameter on the backlit LCD.

Customize your application with three humidity probes (sold separately). The general-purpose probe measures ambient conditions. Use the 12” stainless steel probe for air duct measurements. The extension cable probe includes a humidity sensor at the end of a 5-meter cable for high-temperature and hard-to-reach measurements. Order probes separately.

Probe(s) must order probe

ACCESSORIES

REVIEWS

Q&A

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3 Questions | 3 Answers
Displaying questions 1-3
  • Q:

    Does this product come with one of the discussed probes? Namely and HMP75, HMP76, or HMP77?
    Asked on 7/1/2015 by Jake

    1 answer

    • STAFF EXPERT

      A:

      No, this is the meter ONLY

      Answered on 7/1/2015 by Anthony from Technical Support
  • Q:

    Is it capable of determining the moisture(water) % of a stack from a combustion device or any other stack as long as the temperatures are not in excess of those provided in the specifications?
    Asked on 4/19/2011 by Anonymous from Freeport, Texas

    1 answer

    • STAFF EXPERT

      A:

      This would depend on the composition of the gas or gases involved. Please contact us with this information.

      Answered on 4/20/2011 by Chris from Technical Support
  • Q:

    Our objective is to measure relative humidity and to calculate absolute humidity in g/cubic meter over long periods of time ex:1 to 7 days. Can the multiprobe thermohygrometer be used for this purpose. The probe will be inserted in a air circulating box.
    Asked on 9/14/2009 by R&H quest from Quebec, Canada

    1 answer

    • STAFF EXPERT

      A:

      You can use this meter for sampling applications.

      The auto shut off feature can be disabled to allow for continual measurements. The unit can be programmed to sample at a user set interval down to 1 s. The memory can hole 2700 data points. The unit also comes with a 115 VAC power supply.

      Answered on 9/15/2009 by Aaron from Tech Support
Displaying questions 1-3

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