Here’s the page we think you wanted. See search results instead:


Contact an Expert

Starting From US$ 2,303

Typically Configured Price US$ 2,303

Typical Configuration

U5855A TrueIR Thermal Imager, 350 degree Celsius

  • R-51B-001-F Return to Keysight Warranty - 3 years
  • W4100B-3MW Warranty, 3mth for included accessories

Typically Configured Price US$ 2,303


Prices for: United States

* Prices are subject to change without notice. Prices shown are Manufacturer's Suggested Retail Prices (MSRP). Prices shown are exclusive of taxes.

Key Features & Specifications

  • Identify abnormalities faster with 4x more in-camera fine resolution
  • Monitor temperature changes through image logging and temperature trending capabilities
  • Ability to focus on objects as close as 10 cm away
  • Compact, lightweight, ergonomic
  • Measure temperature up to 350 °C
  • Easy-to-use customizable color palette
  • Configurable quick access buttons to easily change settings with one hand
  • Stream, record and playback video up to 8 frames/s (viaTrueIR Analysis and Reporting Tool)
  • Long product warranty - 3 years


Find potential problems more quickly with 320 x 240 pixels of in-camera fine resolution. The U5855A is ideal for predictive maintenance activities, from hot spot detection to thermal profiling in industrial or commercial applications and higher temperature applications, such as welding, petro-chemical. Only from Keysight can you get a 320x240 fine resolution thermal imager with image logging and temperature trending capability at a lower price than the typical 320x240 thermal imager.

ECN recognized the U5855A TrueIR thermal imager in the Cooling and Thermal Management category for design engineering that makes it ideal for predictive maintenance.

The U5850 series TrueIR thermal imagers have image logging capability, which enables you to log images at an interval over a period of time. Together with the trending analysis from the complimentary TrueIR Analysis and Reporting Tool, you can easily conduct temperature profiling on your design, perform equipment failure analysis or monitor machine performances.

Download the TrueIR Analysis and Reporting tool for free from to import, analyze and edit thermal images and quickly generate reports using ready templates.

Learn how this new test tool improves your efficiency on predictive maintenance tasks. View our application notes and tips in thermography.

Notice for EU Customers: Keysight will discontinue the U5855A series TrueIR Thermal Imagers for European (EU) countries due to RoHS non-compliance on April 1, 2021. The last day to place order for this product is March 31, 2021. Keysight will continue to provide world-class support for this product for the standard period of 5 years.