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Keysight Used
  • Savings of up to 90%
  • Working Condition
  • Calibrated or Tested
  • 30-Day Right-of-Return
  • No Customization
  • Shipping to limited countries

Learn more

Keysight U5855A

-U5855A-0

TrueIR Thermal Imager / up to 350 Degrees Celsius

Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
Actual instrument
Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
Actual instrument
Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
Actual instrument
Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
Actual instrument
Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
Actual instrument
Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
Actual instrument
Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
Actual instrument
Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
Actual instrument
Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
Actual instrument
Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
Actual instrument
Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
Actual instrument
Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
Actual instrument
  • Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
  • Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
  • Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
  • Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
  • Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
  • Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
  • Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
  • Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
  • Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
  • Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
  • Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
  • Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius

From USD*1,425.50New Price 2,851.00 USD*

Buy Now Online1,425.50
Request a quote

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Keysight U5855A TrueIR Thermal Imager / up to 350 Degrees Celsius
Keysight Used
Keysight U5855A
TrueIR Thermal Imager / up to 350 Degrees Celsius
Configuration: No customization available
Shipping:Limited countries only
Warranty: 90 days
Accessories: Not included

KeysightCare Assured: Support. Elevated.
Add complete customer care to your order and get:
• 4-business-hour technical response
• Committed repair coverage
Learn more

Cannot ship to:

European Union
Switzerland
Norway
Turkey

Unit only ships within China.

Unit ships worldwide.

Standard Keysight Used
Condition Checked, working Calibrated units perform according to specification. Not calibrated units are operational tested/power up test.
DownloadsKeysight U5855A Data sheetKeysight U5855A User Manual
Support 90 days warrantyFor calibration & service plans contact us.5 years Keysight Care assured on eligible models
CalibrationTested or calibratedIf there is no certificate in the gallery above, the unit is tested but not calibrated.
AccessoriesNot includedFor help, please contact a Keysight expert
Shipping Limited countries only Check availability
LocationKeysight Factory, Penang, MY
Deal IDE185410813881

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This InstrumentThis Instrument
Keysight Premium UsedKeysight Used
Save up to 70%Save up to 90%
Like New ConditionWorking Condition²
Firmware UpdatedFirmware as Listed
Fully CalibratedCalibration as Listed
New AccessoriesAccessories as Listed
Like-New Warranty
1–5 Years¹
90 days warranty
Customization PossibleLimited Customization

Contact us to check availability of any service, calibration plans, or the possibility to software. New accessories may be able to be added for the United States only. 

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)

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.

See downloads for more details
Support
90 days warranty
Contact us or request a custom quote to check availability of service plans.
Calibration
Tested or calibrated
Get up to 10% discount on calibration plans ordered with your used Keysight instrument.
Contact us or request a custom quote to check availability.
Accessories
No accessories included
To order additional accessories, please contact us or request a custom quote
Software
Get up to 10% discount on software ordered with your used Keysight instrument.
Contact us or request a custom quote to check availability.

FAQs

What are the differences between Keysight Used & Keysight Premium Used?

You will find more information about the differences of Keysight's used equipment standards here.

Can I configure a unit to meet my personal needs?

Customization is generally possible with our Keysight Premium Used equipment. The majority of our Keysight Premium Used equipment can be configured just the way you need it. Options can be added at additional cost.
Customizing Keysight Premium Used equipment might change the delivery and lead time of the item.

Some Keysight Used products cannot be customized. Use the contact option on the product page to check with the our eStore team.

What accessories are included?

Keysight Premium Used equipment typically comes with the same accessories and warranty as new products.

For Keysight Used products, the accessories included are mentioned in each listing on the Keysight Store on eBay or the Keysight Alibaba store.

Can you include other accessories?

We currently only offer those accessories which are part of the listing. Other accessories can be purchased separately at extra cost with your purchase of a Keysight Used or Keysight Premium Used unit.

Please mention in the comment field which additional accessories or support you are interested in.

For seperate or post-purchase ordering, please contact your local Keysight office or Keysight Partner.

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FAQs

What is a FieldFox Handheld Analyzer?

The Keysight FieldFox Handheld Analyzer is a handheld radiofrequency and microwave monitor with a frequency range between 3 kHz and 300 GHz. It is among the most integrated handheld portable analyzers on the market and is built to work in the toughest working environment. It can measure the most important and essential electrical parameters that are of profound importance in today's power grids, such as voltage, current, frequency, and power quality. FieldFox is easy to use and does not require extensive training for the user.

The unit is equipped with 30 different measurement functions and utilities. Some measurement functions included are Spectrum Analyzer, Real-Time Spectrum Analyzer, Vector Network Analyzer, Cable and Antenna Analyzer, and Extended Range Transmission Analysis.

For more information on the features of the FieldFox Handheld Analyzer, click here to Get To Know FieldFox.

What is radio frequency?

An alternating electrical current or a magnetic, electric, or electromagnetic field or mechanical system's oscillation rate that lies around 20 kHz to around 300 GHz is known as radiofrequency. Frequencies immediately below RF are audio frequency (AF) ranging from 20 Hz to 20 kHz Radio frequency covers all the way upto the range of extremely high frequency.

This definition refers to the electromagnetic waves themselves, which carry the radio data signals being part of today's most important technologies. Radio frequencies are also called "radiotelephone frequencies" when used as a radio telephony system.

What frequency range does a Fieldfox have?

FieldFox Handheld Analyzers operate from 3 kHz to 300 GHz. This range is wide enough to allow complete testing of most power grids and high voltage equipment. It is also used to analyze microwave components such as filters, couplers and other devices.

Fieldfox vs. Oscilloscope – What's the difference?

Oscilloscopes are used to measure voltage waves, while FieldFox Handheld Analyzers can perform most electrical measurements and can enhance the capabilities of analyzers. Oscilloscopes operate with frequencies up to the hundreds of MHz range and with bandwidths of around 100 MHz or higher. There are many applications where the oscilloscope's frequency range will not be wide enough to provide a quality measurement. A major reason is the oscilloscope’s limitation as it lacks the capability of examining high frequency sharp rise time transients.FieldFox Handheld Analyzers have a much wider frequency range, going from 3 kHz to 300 GHz, with a typical limit of 10 MHz.

Although FieldFox Handheld Analyzers are not oscilloscopes, they allow you to create waveforms that resemble voltage or current signals within known component specifications. For example, the spectrum analyzer function produces a graph that resembles an oscilloscope display.

FieldFox Handheld Analyzers are capable of analyzing power grids where oscilloscopes cannot reach. Since the FieldFox runs on battery or USB power, it can go to the job site, where other instruments cannot.

For a full list of oscilloscopes that we carry, please visit the used equipment product category page.

Fieldfox vs. signal generator – what's the difference?

Signal generators produce electrical signals at the desired frequency over a range of voltages. The FieldFox can test equipment, subsystems, or complete systems. What sets them apart from traditional signal generators is that they can test both RF signals and power grids simultaneously.

The FieldFox Handheld Analyzer is different from a signal generator because it can generate a signal and measure many parameters with one hand-held device. It does not need a separate power supply or calibration, the only thing needed is the unit itself as it is portable and battery-powered. This makes it more efficient for field test engineers to use.

For a full list of signal generators that we carry, visit the product category page.

Fieldfox vs. spectrum analyzer – what's the difference?

Spectrum analyzers display the amplitude and frequency of a signal within a specific bandwidth according to the frequency range of the given instrument. A spectrum analyzer measures power over a range of frequencies instead of a specific frequency.

FieldFox Handheld Analyzers are different from spectrum analyzers because they can simultaneously test RF signals and power grids. FieldFox can do all the measurement functions that a spectrum analyzer and oscilloscope can do without needing separate instruments for each function, making it more efficient to use in many situations.

For a full list of spectrum analyzers that we carry, visit our product category page.

Can I save Fieldfox data to a USB drive?

Yes, the unit is equipped with an integrated USB port that enables the user to download recorded waveforms and data to a PC running FieldFox software. But, you will need a standard USB cable for this purpose.

Can I Use a LAN Connection with my FieldFox?

Yes, LAN connections are compatible with the FieldFox handheld analyzer which allows you to send your data to a computer. The setup is simple and can be done through the LAN wizard in the Windows control panel. But, you need to make sure that the LAN connection is 100Base-T speed or faster in case you choose the firmware A.03.06 or earlier.

How do I calibrate my Fieldfox?

The FieldFox is equipped with CalReady and QuickCal built-in software that makes calibrating in the field simple and efficient. FieldFox also provides a selection of mechanical calibration types when a calibration kit is available. Regardless of how you are calibrating, the FieldFox will walk you through performing a user calibration using the built-in "Calibration Wizard," which guides you step by step.

(davide: pls make the notice box here stand out more, maybe put it in a grey or green box like the notice on top of the oscilloscope guide)
Note: This way of calibrating is available in all Fieldfox “A” models.