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Miniature Fixed Infrared Temperature Sensor with Optional Touch Screen Display

RS485 Modbus, 2 alarm relays output, 15:1, IR Sensor with Display


Item# OS-MINI152-D-C4

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 C$1,131.46
5-9 C$1,074.89
10-24 C$1,052.26
25-49 C$1,007.00
50-99 C$984.37
100+ C$961.74

In stock

Lead Time (If not in stock): 6 weeks
RS485 Modbus, 2 alarm relays output, 15:1, IR Sensor with Display OS-MINI152-D-C4 OS-MINI152-D-C4
  • Temperature Sensing head is completely sealed and IP65 rated
  • Multiple different output options: USB, 4 to 20 mA or RS485
  • Resistance to error from moving, ideal for robot arms and similar equipment
  • OS-MINIUSB comes with FREE software (Software Tab)

OS-MINI152-D-C4 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.

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

Process Temprature Range
Field of View
Accuracy @ Ambient
Operating Temprature range
Built in Display
Cable Length
Supply Voltage
Spectral Response
Response Time
Communication Protocol
Laser Output
Intrisically Safe

The OMEGA™ OS-MINI-Series is packed with a wide variety of infrared sensors designed to work for many applications and provide fast non-contact temperature readings. The miniature sensing head is ideal for space limiting areas, is manufactured using 316 stainless steel and has an IP65 rating. This robust, easy to use sensor is used in many industries including pharmaceutical, food, automation, manufacturing, plastics, paper, and much more!

OS-MINI and OS-MINI22 Models

The electronics module is available with several different options: The backlit touch screen interface provides a large, bright display of the measured temperature in digital format and a graph view that shows the history of the measured temperature. It also enables full configuration of the sensor including temperature range setting between -20 to 1000°C (-4 to 1832°F), adjustable filtering, peak or valley hold processing, emissivity setting and reflected energy compensation. In alarm conditions, the whole display changes color to provide an immediate and obvious alarm indication.

Alarm modes and levels can be configured via the touch screen. When fitted with a MicroSD card, the Omega MINI and MINI22 models also function as a data logger, providing a useful means of recording process temperatures for quality assurance and traceability. The user can select the sample rate and the number of samples to be taken and schedule the data logging to start at a certain time. With a 2 GB card, the user can store 28.4 million time and date stamped readings, which provides almost 1 years’ worth of data at the fastest possible sample rate of 1 per second. Output options include 4 to 20 mA, RS485 Modbus and alarm relays, which are rated 24 Vdc so there is no need for a separate trip amplifier. Optional accessories include mounting brackets, an air purge collar, protective lens cover and laser sighting tool.


The OS-MINIUSB is a simple easy way to measure non-metallic surfaces between -20 and 1000°C (-4 and 1832°F), with a response time of just 125 ms. Some specific applications of the OS-MINIUSB include but not limited to:

Benchtop and Laboratory

With the precision and robustness of our industrial pyrometers, and the plug-and-play convenience of USB, the OS-MINIUSB is the ideal fixed mount IR temperature sensor for testing and experimentation.


The OS-MINIUSB is ideal for teaching science concepts such as emissivity, reflectivity, thermal conductivity, energy transfer, insulation and internal energy.

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Rated 5 out of 5 by from This is a great product Our lab purchased two of these thermometers at 20:1. They are very easy to install and great for monitoring surface temperatures. The only real downside for our purchases was the 6 week lead time. The associated free software (OmegaConfig 1.08) is functional but a little clunky. Being able to switch between a digital temperature value and a graph while recording is handy, but the axes of the graph constantly autoscale, and it would be nice to be able to set these manually. The sensor logs all data automatically, so there's no separate save step necessary. This does mean parsing through a long log (.csv) file later, but there are handy divisions inserted in the file any time recording is stopped and restarted.
Date published: 2017-06-26
Rated 4 out of 5 by from Switching between C and F childproofed. Great sensor except for the fact that it took me a while to figure out how to change from deg. C to F. You'd think it'd be in the settings of the software or otherwise be very obvious. It's not obvious...
Date published: 2020-06-08
Rated 5 out of 5 by from Everything went very smooth Product very helpful in monitoring temperature of the rubber.
Date published: 2018-12-18
Rated 5 out of 5 by from great good experience with this purchase , as all the product we purchase from omega
Date published: 2016-06-27
Rated 5 out of 5 by from IR sensor Sensor works good and was easy to order. Would order again.
Date published: 2023-10-16
Rated 4 out of 5 by from Efficient IR Sensor with Alarm Relays and Display The 4 to 20 mA, 2 Alarm Relays Output, 15:1 IR Sensor with Display is a remarkable device. Its 15:1 range ensures accurate readings, while the 2 Alarm Relays offer versatile alerts. The clear display provides real-time data, enhancing monitoring. A compact yet powerful solution for industrial applications.
Date published: 2023-08-28
Rated 5 out of 5 by from Monitor and Display It's easy to setup and use for continuous monitoring the process temperature.
Date published: 2023-07-26
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I'm wondering if the 4-20mA output is isolated so that if the PLC this would be wired to had the negative side of the loop tied to ground would it still work? An electrical drawing of the analog output circuitry would be ideal.

Asked by: GPDiver
Thank you for your interest in our Products The output is not isolated, so if the PLC input is connected to ground, there could be a ground loop if the electronics module housing and/or the sensing head metalwork are grounded. This would not cause too much of an issue provided there are no switching currents in the ground, and the ground connections are all close together. We do not have a Electrical drawing of the analog output circuity .
Answered by: SAE SAT
Date published: 2019-08-10

How close to the product does the probe need to be to accurately measure an in process manufactured consumable consumer good(food)? inches, 4-5', 10+ feet?

Asked by: Craig C
The sensor can measure from 10' away but the measurement spot size must be contained within the perimeter of what is being measured. The 20:1 ratio would have a 0.5" spot size right up at the lens and at 10' it would be about a 9" diameter. Refer to the diagrams on the data sheet to see what is the best distance to size ratio for your application.
Answered by: ApplicationsEngineerANB
Date published: 2022-04-04

Hi, is it possible to read out the entire spectrum (Planck's law) from the OS-MINIUSB-SN21, or any of the Omega IR sensors ? Thanks

Asked by: Palr
Please send your inquiry to for possible assistance.
Answered by: ApplicationsEngineerANB
Date published: 2022-02-17

Can I dip the sensor into a liquid? If it can, what is the max temperature of the liquid?

Asked by: N Ari
Thank you for your inquiry. N Ari. Unfortunately, this sensor cannot be exposed to any liquids. Exposure to liquids will damage the electronics in the sensor.
Answered by: Application Engineer MC
Date published: 2022-11-06

What is the base detection distance of the OS-MINI-HA201-MA-HT? That is, the distance the device can accurately detect temperature without use of additional optics. Thank you.

Asked by: Frisko
Thank you for your inquiry Frisko. The OS-MINI-HA201-MA-HT has a field of view of 20:1. It can measure the temperature of a spot size of 0.5 inches at a distance of 0". Please check the graph on the data sheet which shows how to get a specific spot size based on how far away the sensor is from the surface. Here is the link:
Answered by: Application Engineer MC
Date published: 2022-11-06

Does it measure human temperature also? What is the accuracy?

Asked by: Manjil
This product is not intended for medical use or use on humans
Answered by: SAT_SAE
Date published: 2020-05-19

Does the OS-MINIUSB-SN21 require or have an OEM calibration cycle recommendation?

Asked by: Greg Hisaw
Hi Greg, Thank you for the inquiry. We have a suggested calibration interval of 1 year. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2023-12-24
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Adjustable mounting bracket for compact sensors
0 In Stock
Fixed bracket for compact sensors
2 In Stock
Spare 2 GB MicroSD card
15 In Stock
Air purge collar for compact 2:1 sensors
0 In Stock
Air purge collar for compact 15:1, 30:1 and close-focus sensors
4 In Stock
Laser sighting tool for compact sensors
0 In Stock
Dual laser sighting bracket
0 In Stock
This item is discontinued. Please contact Technical Sales Team for assistance.
Protective Lense Cover/Window for OS-MINI Model
0 In Stock
Silicon Lense Cover/Window for OS-MINI Model
0 In Stock
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