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Item#: N82E16896268001

Rosewill REGD-TN439L0 Infrared Thermometer

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  • Check Temperature Without Surface Contact
  • Laser Pointer
  • Large LCD Screen

  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Powered by laser sight technology, the Rosewill REGD-TN439L0 infrared thermometer can measure object temperature from -35 to 365ºC(-31 to 689ºF) at ambient temperature from 0 to 50ºC (32 to 122ºF) with +/- 1.5ºC(2.7ºF) accuracy and 0.2ºC(0.5ºF) step in just one second. Its large LCD screen with bright amber color backlit shows legible realtime temperature information. Featuring longer battery life and auto power off, this infrared thermometer lasts longer between charges.

  • newegg Versatile Thermometer with Large LCD Screen The Rosewill REGD-TN439L0 infrared thermometer is a great tool for detecting temperature of motherboard/video card, air condition outlet temperature and Auto engine temperature. With a large LCD screen, watch the temperature of objects in real time easily.
  • newegg Longer Battery Life With two AAA batteries, The Rosewill REGD-TN439L0 can works up to 18 hours which is longer than traditional 9V thermometer.

Learn more about the Rosewill REGD-TN439L0




172 x 36 x 71 mm




Selling Unit



Laser sight technology

Large LCD Screen, with brigh amber color Backlit

Real time maximum temperature reading

Auto Power Off time is 15 sec

Last measurement memory

Recall by pressing ºC/ºF key while power off

Longer Battery Life than tranditional 9V thermometer


Emissivity: Most (90% of typical applications) organic materials and painted or oxidized surface have an emissivity of 0.95 (pre-set in the unit). Incaccurate readings will result from measuring shiny of polished metal surfaces. To compensate, cove the surface to be measured with masking tape or flat black paint. Allow time for the tape to reach the same temperature as the material underneath it. Measure the temperature of the tape or painted surface.

Tobj: temperature of object

Tamb: temperature of ambient


Measurement Range: -35 to 365ºC(-31 to 689ºF)

Operating Range: 0 to 50ºC (32 to 122ºF)

Accuracy(Tobj=15 to 35ºC, Tamb=25ºC): +/- 1.5ºC(2.7ºF)

Full Range Accuracy(Tamb=23+/-3ºC)
Tobj=0 to 365ºC: +/-2.5% of reading or 2.5ºC (4.5ºF) whichever is greater
Tobj=-35 to 0ºC: +/-(2.5ºC + 0.05/degree)

Resolution(-9.9 to 199.9ºC) 0.2ºC/ 0.5ºF

Response Time(90%): 1 sec

Distance: Spot
8:1 (means that if the meter is 8 inches from the target, the diameter of the object under test must be at least 1 inch)

Emissivity Range: 0.95 fixed

Update Frequency: 1.4Hz

Wave Length: 5 to 14 um

Mode: RTMax, C/F switchable

Power Supply: AAAx2 (Alkaline)

Battery life: Typical 18 hours continuous use

Weigt(with battery): 152 g(5.36 oz)
Warranty, Returns, And Additional Information
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by's Standard Return Policy.
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