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Portable Temperature/Humidity Data Loggers with USB Interface

OM-140-Series

USB Temperature Data Logger | USB Humidity Data Logger | Portable | OM-140-Series
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OM-140-Series is rated 3.8 out of 5 by 4.
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1 year warranty CE
  • One Button Starts/Stops Data Logging Without a PC
  • Plug-and-Play USB 2.0 Interface; No Need for Cables, Cradles or Docks
  • Large Storage Capacity: 16,000 Pairs of Temperature and Humidity Readings
  • 3½-Digit LCD Displays Real-Time Temperature and RH Readings, Device Working Status and “Memory Full” (OM-143 and OM-144 Only)
  • Built-In Infrared Thermometer for Checking Temperature of Vents and Surfaces (OM-144 Only)
  • Sampling Time and Hi/Lo Temperature and RH Alarm Setpoints are Selectable Using Included Software
  • Software Also Calculates Dew Point and Wet Bulb Temperatures, and Mixing Ratio as GPP (Grains per Pound) or GPK (Grams per Kilogram)
  • One-Click Exporting of Logged Data to Excel® or Word
  • Long Battery Life (Up to One Year)
Data Loggers - View related products

Description

The OM-140 Series are low-cost, compact, battery powered temperature/humidity data loggers capable of unattended logging (recording) of the ambient temperature and relative humidity (RH) of an environment for days, weeks or months. The OM-144 data logger can also measure and optionally log surface temperatures spot-checked by a technician using the unit’s integral infrared (IR) thermometer. In addition, these units can also calculate and display absolute humidity levels in units of grains per pound (GPP) or g/kg. Also called mixing ratio, GPP is a more useful moisture metric than RH to water damage restorers. Using RH alone, a restorer might unknowingly introduce moist air—with a low RH but a high GPP—during a job’s drying phase.

Data logging can be started or stopped by pushing a button on the unit, eliminating the need to bring a laptop to the job site. After a data log has been captured and stored, it can be uploaded as a .txt file to any PC running the Windows® XP/7 or 8 operating system after plugging the data logger into one of the computer’s USB ports. The data logger’s internal flash memory is large enough to store 16,300 pairs of temperature and RH readings or for the model OM-144 nearly 10,000 sets of RH, ambient temperature and surface temperature readings. Included with the product is a mini-disc with the drivers needed to interface the unit to the computer, as well as software that can display a data log file as a table or graph and/or export it to Microsoft Excel. Exporting to Excel is recommended for sophisticated trending and analysis of humidity and temperature data and easy detection of unexpected excursions.
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Part Number/ Desc.
Qty
Description
  
OM-141 Star
$60.00
Available In 1 Week
 
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Replacement 3.6V lithium battery
All amounts shown in USD
Note: Comes complete with Windows software on CD, protective cap, USB extension cable, 3.6V lithium battery and user’s manual. Models OM-141 and OM-143 also include a magnetic mounting base.
Ordering Example: (1) OM-143 Temperature/humidity data logger with LCD display, $80.00

Product Manuals:

Download USB RH/Temeprature/GPP Mini Data Logger
Download USB RH/TEMP/GPP Data Logger
Download USB RH/Temperature/GPP Data Logger with LCD and IRT
Rated 5 out of 5 by from So Far So Good Been using two of these units for the past couple weeks and they are performing well. Temperature accuracy is as advertised (they give the exact same reading to the tenth of a degree C and these temps match other accurate devices I have. The relative humidity values vary by 0.5%, but this is in the advertised range. Very easy devices to set-up and to remove data..
Date published: 2016-12-26
Rated 1 out of 5 by from Frequent software malfunctions Purchased 4 of the base models of the OM-141. They worked the first time, well within advertised accuracy. Additional setups and data extraction work 10% of the time. Package software often has timeout errors even with small <100 data point sets. Frequently wipes data off devices for no reason as well. Manual and setup DVD provided no explanations for these peculiar cases
Date published: 2017-08-31
Rated 4 out of 5 by from great features I bought this instrument a couple of weeks ago and its very helpful to monitor our ac performance data.
Date published: 2017-07-23
Rated 5 out of 5 by from Great out the box Tested over and hour and checked. So far so good. Fixing to put them to work on mold lawsuit home and will follow up after recording for three weeks
Date published: 2017-07-19
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