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OM-74
Portable Temperature/Humidity Data Loggers with Display
Volume discounts available
Volume Discount Schedule
| Quantity | Price each |
|---|---|
| 1-4 | C$379.90 |
| 5-9 | C$360.91 |
| 10-24 | C$353.31 |
| 25-49 | C$338.11 |
| 50-99 | C$330.51 |
| 100+ | C$322.92 |
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Product Specs
<< See all Product Models| Brand |
 |
| Alarm Note | Over/under alarm with visual indication |
| Battery Size and Type | Alkaline AAA |
| Battery life | up to 3 yr |
| Cold Junction Temperature Accuracy | ± 0.3 °C |
| Data Interface | USB |
| Display Type | LCD |
| Form factor | Handheld |
| Height | 3 cm |
| Length | 5.7 cm |
| Measurement Type | Temperature |
| Number of Measurements | 1 |
| Operating Temperature, Max | 55 °C |
| Operating Temperature, Min | -18 °C |
| Relative Humidity Accuracy | ± 3% RH |
| Samples,Max | 33000 |
| Sampling Rate | 1 Hz (1 update/second) |
| Sampling Rate Note | 1 second to 18 hours user selectable |
| Software Compatibility | Windows® XP/VISTA/7 and 8 (32- and 64-bit) |
| Storage Temperature, Max | 80 °C |
| Storage Temperature, Min | -30 °C |
| Supply Power Type | Battery |
| Temperature Accuracy | ± 0.1 °C |
| Temperature Resolution | ± 0.1 °C |
| Temperature Resolution Note | 0.1°C (0.2°F) up to 199.9°C or °F, 1°C (1°F) above 200°C or °F |
| Time Accuracy | ± 100 ppm |
| Weight | 62 g |
| Width | 5.5 cm |
| See All Specs | |
PDFs & Manuals
Software & Drivers
Show Ratings & Reviews
Rated 4 out of
5
by
Myrran from
Solid Logger (for the most part)
I have bought roughly 10 of these over the past 8 years. We use them for monitoring the temperature and humidity of a control room for Concrete testing. For the most part these are solid units. I have had a couple that had the screens go out on them after 5 years or so and the plastic gets discolored when exposed to sunlight. One had the temperature go out and it only lets you calibrate it slightly from the original settings. That said these generally work great with those few exceptions. The program for the PC is easy to use and understand. I will continue to purchase these as needed.
Date published: 2016-03-11
Rated 4 out of
5
by
dusty from
works great.
easy to use.
had to guess where to get software to download data to but figured it out eventually.
USB connection works easily, but I would now pay a little mre for a wireless download option
Date published: 2018-03-14
Rated 4 out of
5
by
1234 from
Good for general monitoring
We really like the OM-70 series for monitoring temperature and humidity during our testing. They work well and the software is easy to use.
The only issue we have is that they will not stay in calibration in the lower 10 degrees C of the published range and there is no adjustment to correct this. We calibrate them to 10 C above the published low range and they work well there.
Date published: 2017-11-16
Rated 5 out of
5
by
OK nice from
Ok
OK it is an small product but is very powerfull. I like it!
Date published: 2020-11-16
Rated 5 out of
5
by
Andrew W from
Works as promised
These are great for measuring temperatures in a concrete cure room that we have for ASTM C511.
Date published: 2020-08-04
Rated 4 out of
5
by
Kyle from
Good value for a stand alone data logger
I have bought these many times over the years and appreciate the updates to the user interface. The data loggers are very robust and accurate. I would give this a 5 star review if there was a version of the software that would also calculate Heat Index as part of the standard data output. Very useful for safety studies.
Date published: 2019-07-11
Rated 1 out of
5
by
Hughmahn from
NOT A PRODUCT YOU WANT TO PURCHASE!!!!
OMEGA will not support this product. You have to send over $65.00 for the software to operate the product. DO NOT PURCHASE THIS PRODUCT!!!
Date published: 2018-06-07
Rated 4 out of
5
by
Lorenzo from
Reliable instrument
Have one of this working for more than 4 years in a curing room in the middle of the Mojave desert. No problem at all.
Date published: 2017-09-01