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Non-Contact Digital Display Forehead Thermometer 3 Color Alarm

Non-Contact Body IR Thermometer with 3 Color Alarm Backlight Display
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Item# OS-821

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $102.30
5-10 $97.19
11-50 $92.07
51-100 $86.96
101-200 $81.84
201+ $76.73

Please contact Technical Sales Team for assistance. Any remaining stock is available for purchase

Only 3,715 left

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Non-Contact Body IR Thermometer with 3 Color Alarm Backlight Display OS-821 OS-821
  • Manual available below, refer to manual tab
  • Internal memory stores up to 34 readings for easy recall
  • Three color alarm backlight display visually show normal, slightly high, and high body temperatures

OS-821 Model Options

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Process Temprature Range
Accuracy @ Ambient
Operating Temprature Range
Built in Display
Supply Voltage
Response Time

  • Dimensions 5.7 x 3.1 x 1.6" (145 x 80 x 40 mm)
  • Optimum Measuring Distance 1.9” to 3.2” (5 to 8 cm)

The OS820-Series is designed to be a screening device to measure body temperature without contact. The easily visible three-color alarm backlight display makes it easy to detect higher temperatures during temperature measurement. This IR thermometer measures body temperatures from 89.6°F to 108.5°F (32.0°C to 42.5°C) and surface temperatures from 32°F to 212°F (0°C to 100°C). Ideal for use when measuring body temperature on individual’s forehead with a distance of 1.9 to 3.2" (5 to 8 cm).

The OS820-Series is good for initial screening in areas such as: large gatherings, buildings, factories, and schools/universities. The non-contact benefit of using the OS820-Series thermometer could reduce the spread of infectious diseases.

*This device is intended for screening purposes only, not to replace clinical thermometers or a professional diagnosis.

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Rated 5 out of 5 by from Works well for quick non-touch human temperature I bought a few of these for my business to help get back open. Good product easy to use. Switching from C to F was not intuitive at first but the guide helped with that. Other than that it has been quick and easy to use and works well for what I needed.
Date published: 2020-05-28
Rated 5 out of 5 by from Great thermometer This is a great thermometer, easy to use and was able to change to Farenheit easily. Received fast after placing order.
Date published: 2020-06-18
Rated 5 out of 5 by from IR Thermometer Great instrument! The unit is accurate and easy to use.
Date published: 2020-06-17
Rated 5 out of 5 by from Non-contact body IR thermometer First one shipped did not work. It showed error message. When I called, company immediately shipped a replacement, which works very well. Great responsiveness. Good quality product.
Date published: 2020-06-07
Rated 5 out of 5 by from gardner received promptly. works as expected.............................
Date published: 2020-06-19
Rated 3 out of 5 by from Good Good enough for daily use. Does not come with batteries and packaged poorly. An empty insert in the plastic makes it look like something was missing. Instructions did not come in the box but company sent an email with them.
Date published: 2020-06-08
Rated 5 out of 5 by from Calibration Verified The Unit worked perfect. Upon receipt of the 2 units we purchased, both units were verified for accuracy. The calibration procedure was followed at per ISO/IEC 17025:2017 & ANSI/NCSL Z540-1-1994 (R2002) standards and passed well beyond any other device we use.
Date published: 2020-08-23
Rated 3 out of 5 by from Half Way Only 1 of the 2 I ordered worked properly. Display screen on second thermometer would not display correctly. Other one worked fine as expected.
Date published: 2020-04-18
Rated 1 out of 5 by from Broke down in 48 hours! Purchased two; first one after 2 days of use locked up when pressing the trigger. 48 hour life span of a $99 product!
Date published: 2020-05-08
Rated 1 out of 5 by from Non-Contact Body IR Thermometer with 3 Color Alarm 2 of the 3 would not power on and the third would not take body reading, only surface reading.
Date published: 2020-12-11
Rated 5 out of 5 by from n/a Good tool to have during this pandemic, works well
Date published: 2020-12-09
Rated 1 out of 5 by from Didn't Work We had ordered this thermometer for reopening our office. The thermometer was received on time BUT the seal was broken and it did not work. I attempted an online return but was unable to because the package was opened and it didn't work. So I had to email and call customer service for a return. After multiple emails, I finally received an email stating they would ship a replacement and to discard the other one. However, we had ordered and received another thermometer by the time I received the response. Upon receipt of the email, I replied denying the replacement as we had already ordered and received a working thermometer to ensure we had one for reopening day. Still, no response and a thermometer showed up yesterday. I refused the delivery.
Date published: 2020-06-18
Rated 1 out of 5 by from IR Thermometer Worked for two days off and on take batteries out put back in might come on might not would like to get replacement
Date published: 2020-06-15
Rated 2 out of 5 by from Middle of the road No instructions - had to call for help --- accuracy questionable -
Date published: 2020-06-02
Rated 1 out of 5 by from Don't get this I didn't get any instructions with the thermometer and can't get it to work
Date published: 2020-05-26
Rated 1 out of 5 by from doesnt work After recieving the thermometer, i put new batteris in it and all it does is beep and flash. After pushing and holding every button down, it did not work. I'm currently not able to take temperatures at all because it wont stop beeping and flashing.
Date published: 2020-04-28
Rated 1 out of 5 by from Thermometer Cheap Chinese with Celsius only - bout from American company thinking would be different than all the other cheap Chinese made thermometers on Amazon,etc. but it is the same one could have had there for less
Date published: 2020-04-23
Rated 1 out of 5 by from Poor Quality Quit working within one week with very little use, had to go back to using old touch thermometer
Date published: 2020-04-22
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