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Temperature/Relative Humidity Data Logger with Graphing Display

Temperature/Relative Humidity Data Logger with Display



Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 C$431.14
5-9 C$409.58
10-24 C$400.96
25-49 C$383.71
50-99 C$375.09
100+ C$366.47

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Lead Time (If not in stock): 15 weeks
Temperature/Relative Humidity Data Logger with Display OM-DVTH OM-DVTH
  • Text Display: Shows Real Time Temperature, Humidity and Dew Point Also Shows Logging Summary, Sample Rate, Memory Used and Memory Left
  • Graph Display: Shows Measurement Trends Graphically, with Scrolling Feature
  • Visual Over and Under Alarm Indicators for Temperature and Humidity
  • USB Connection

OM-DVTH Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

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Measurement Type
Number of Measurements
Input Type
Maximum Samples
Data Interface
Max Sampling Rate

The OM-DVTH temperature/relative humidity data logger with display is an easy-to-use, versatile device which can be used for a wide range of logging applications. The OM-DVTH records and instantly displays trends for temperature, humidity and dew point. With the OM-DVTH you can monitor real time measurements for instant environmental conditions.

When you’re ready, download over 40,000 data points to your PC for further analysis. Data logging has never been this visual. The OM-DVTH is capable of sampling as fast as once per second or as slow as every 18 hours. A total of 43,344 temperature measurements can be stored in the data logger memory if only temperature is measured, or 21,672 measurements for temperature, humidity and dew point if all three parameters are measured.

Easy-to-use Windows software is included with the OM-DVTH. The software is a full-featured program that allows you to set up all data logger functions including sampling rate, logging duration, start mode, logging mode, and high and low temperature and relative humidity alarm values. Once data has been logged, the program then allows you to download data from the logger, plot the data and export the data to an ASCII text or Excel file format for further analysis.


Text Display: Displays real time temperature, humidity and dew point;
also displays logging summary, sample rate, memory used and memory left
Graph Display: Shows measurement trends graphically; graph can be scrolled
through the entire logged data
Sample Point Capacity: 43,344 points for temperature only;
21,672 points for temperature, humidity and dew point
Alarms: Visual over and under alarm indicator for temperature and humidity
(dew point alarms are not available)
Calibration: User single point offset calibration is available through software
for both temperature and humidity; calibration is password protected
Operating Temperature: -10 to 65°C (15 to 150°F)
Temperature Accuracy: ±0.5°C (±1°F)
Temperature Resolution: 0.01°C (0.01°F)
Relative Humidity Range: 0 to 99% RH, non-condensing
Relative Humidity Accuracy: ±2% RH, from 10 to 90% RH
Relative Humidity Resolution: 0.01% RH
Time Accuracy: ±100 ppm @ 75°F
Display: LCD
Storage Temperature: -20 to 70°C (-5 to 160°F)
7.7 H x 10.2 W x 3.8 cm D
(3.05 x 4 x 1.5')
Weight: 200 g (7.0 oz)
Power: 3 'AA' alkaline or lithium batteries (included)
Battery Life: 2 years (average use)

PC Interface: USB port (USB cable is included)
Sampling Interval: User selectable from 1 second to 18 hours, in 1 second increments
Data Security: Unique factory set logger ID; recording session counter;
password protected calibration
Operating System Compatibility: Windows XP/Vista/7 and 8 (32-bit and 64-bit)
Minimum System Requirements: 5MB of free disk space, 800 x 600 screen resolution,
1 free USB port Recording Start: On button press, immediate after setup,
or at a user specified date and time
Recording Mode: Stop on memory full, or continuous recording with memory rollover
Real Time Status: Visual indication through the status LED; software real time status
User Calibration: Password protected calibration for each channel
User Information: Up to 30 characters
Logger Channels: User selectable; disabling channels increases
the storage capacity of the other channels
Units: US and metric
Data Format: Exportable to text or Excel files
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Rated 5 out of 5 by from Reliable and Predictable Product I have bought a total of 3 of them and have been pleased with the performance, the capacity of readings, the user-friendly software and the ability to export the data easily.
Date published: 2016-10-28
Rated 5 out of 5 by from Good performance This is our 3rd unit. A bit pricy for the certified model.
Date published: 2018-08-20
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Is there a driver available for Windows 10?

Asked by: Lanny
I was able to get the driver to work finally. My computer was not looking in the right folder for the driver. Once I directed it to look in the Omega folder it found it, and I can use the software on a system running WIndows 10.
Answered by: Lanny
Date published: 2019-07-25

The user manual does not give the dimensions of the sensor for the OM-DVTH. Could you please provide these or a drawing if available? I am also looking for the diameter of the cable that joins the sensor to the display module. Thanks.

Asked by: Mr G
Thank you for your question. The OM-DVTH sensor is inside and vented to atmosphere. It is not an external sensor. Please look at RHXL3SD which is a logger with external temp/rh probe.
Answered by: PVDAS
Date published: 2019-11-07

Can this device be calibrated by a third party?

Asked by: Sherry
Thank you for your question. Yes, it can. It is done in the software provided unit is in stable controlled environment.
Answered by: Raptor
Date published: 2021-02-12

Does the unit come with a Calibration Certificate?

Asked by: VINL
We supply a Cal-1 ( cert of conformance).
Answered by: Raptor
Date published: 2024-01-18

is the calibration that it comes with preformed by an is17025 accredited lab?

Asked by: will66
Thank you for your question. We will require more information to help on this question, please email the DAS team at DAS@OMEGA.COM
Answered by: Application Engineer PV
Date published: 2024-01-18

My computer is looking for a driver? Is there one available. Win7

Asked by: nardo53
Here is link to ftp site to download The driver is part of the install. thank you.
Answered by: Application Engineer
Date published: 2019-07-18

Is there a bracket or holder available from Omega that this device can snap into? There is only one small mounting hole on the back for hanging and this doesn't serve our application of this device well.

Asked by: stecharr
Unfortunately, there is no bracket or holder available for mounting.
Answered by: Application Engineer PV
Date published: 2021-03-27

Could you provide a response time spec? We have 7 of these units and they have taken 2+ hours for a unit to reach the proper temp/RH in our calibration chamber. It can take hours to read within OMEGA's specified accuracy for temp/RH range

Asked by: Engineer13
Thank you for your question. We will require more information to help on this question, please email the DAS team at DAS@OMEGA.COM
Answered by: Application Engineer PV
Date published: 2022-07-19
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