Skip to search Skip to main content Skip to navigation

Call us at 1-888-826-6342

We noticed you are from . Visit your local site for regional offers and live support.

Temperature Humidity Alarm with Logging Capability


Item# OM-THA2-U

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 C$724.62
5-9 C$688.39
10-24 C$673.90
25-49 C$644.91
50-99 C$630.42
100+ C$615.93

In stock

Lead Time (If not in stock): 15 weeks
Temperature Humidity Alarm with Logging Capability OM-THA2-U OM-THA2-U
  • Audible and Visual Alarm
  • Digital Display Log Up to 170 Days of Data
  • Relay Contacts for Remote Alarm or Auto Dialer
  • Remote Sensor with USB Connection

OM-THA2-U Model Options

View all models

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

*Highlighted options are not compatible. Please select a different combination.

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

The OM-THA2-U is a multi-function unit that monitors temperature, relative humidity and dew point. The OM-THA2-U records data and generates an alarm for any out-of-range conditions. It consists of a base unit with an easy-to-read display and a 4.6 m (15') remote sensor probe.

The alarm function monitors temperature, relative humidity and dew point once every second. If any of the readings reach an alarm threshold, the unit generates an alarm by turning on a beeper and a dry relay contact. The relay can be connected to a telephone dialer, light or bell. The delayed alarm feature can reduce false alarms by ignoring short duration alarm conditions. The unit will also generate an alarm on probe failure.

The logger function records the data into an internal non-volatile memory at a user specified interval. The recording is performed continuously after the unit is turned on. No computer set-up is necessary to start logging, and all logging settings can be viewed or changed through the front panel functions. When the internal memory becomes full the recording rolls over, overwriting the oldest recorded data. Review logged data on a computer using the included Windows software while continuously recording new data.

All the operating settings of the OM-THA2-U can be changed from the front panel without the need for a computer. The two-line display provides an easy-to-read means of viewing or changing settings.
loading all models
loading all reviews
Rated 3 out of 5 by from Needs to be calibrated... Sent out for calibration to a third party because Omega E does not provide cal services for this particular unit. The unit was found out of +/-2% range. At 53.0 %RH read 49.1%RH. At 75.0 %RH read 70%RH.
Date published: 2018-11-29
  • y_2024, m_5, d_21, h_7
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1
  • loc_en_CA, sid_OM-THA2-U, prod, sort_[SortEntry(order=HELPFULNESS, direction=DESCENDING), SortEntry(order=POSITIVE_FEEDBACK, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_omega
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 4ms
loading all QA

My company doesn't have access to a PC with a CD drive. Can I install the provided software online instead?

Asked by: C3PO
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: 2023-09-26

Is there a way to communicate with this device in c# or do you have to use your datalogging software to log device data

Asked by: Sparkthrower
Thank you for your question. Unfortunately, you have to use the provided software, there is no custom programming language support available.
Answered by: Application Engineer PV
Date published: 2021-07-01
  • y_2024, m_5, d_21, h_7CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_2
  • loc_en_CA, sid_OM-THA2-U, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_omega
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 3ms
Replacement remote sensor probe
3 In Stock
Save Configuration