FLIR LS32J Thermal Night Vision Monocular 7.5 Hz

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FLIR LS32J Thermal Night Vision Monocular 7.5 Hz 431-0010-31-00S

Model no: 431-0010-31-00S

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List Price $2,859.00


FLIR LS32J Thermal Night Vision Monocular 7.5 Hz

Please note that the retail box may be scratched or bent.  If you need this unitfor a gift please confirm with our sales team.

  • 640 x 480 LCD

  • Video output via USB

  • Palm-Sized Portability

  • Light Weight – Only 12 Ounces

  • Rugged, Weathertight, Ergonomic Design

  • Multiple Resolution Choices for Increased Detection Range

  • Up to 2x Digital e-Zoom

  • White Hot, Black Hot and InstAlert™ Palettes

  • 4-Button Operation: Power, Polarity, Zoom and LCD Brightness/Laser Activation

  • Rechargeable LI-Ion Internal Battery

  • Tactical Marking Laser

  • 1 Year Warranty

FLIR LS32J Thermal Night Vision Monocular 7.5 Hz Description

FLIR LS32J Thermal Night Vision Monocular 7.5 Hz

The FLIR-LS series are not just night vision monoculars but thermal imaging devices that make it easy to implement target acquisition and see in dark situations where other night vision devices might let you down. Thermal imaging technology makes it much easier to see, even in bad weather conditions, because it relies on the heat waves that everything release. This makes the FLIR-LS a powerful choice on the field.


These FLIR thermal night vision monocular models have been specifically designed for law enforcement personnel because of their impressive features and ease of use. When you need a lightweight, compact, and rugged night vision device that you can easily hold in the palm of your hand, the FLIR LS is the perfect choice.


The model that you are currently viewing is the FLIR LS32J 7.5hz, a night vision thermal imaging device that offers a 7.5 hz refresh rate, thus making it a simple process to see even moving images using thermal imaging technology. There is also a 30 hz model available.


The FLIR LS32J thermal night vision monocular will allows you to see in pitch black conditions without the need for infra red; as long as targets keep giving off heat, thermal imaging technology will keep reporting it. It is this level of reliability that makes the FLIR LS a great choice for any tactical situation.


The model you are looking at also has a 336 x 256 VOx microbolometer. It weighs a total of 12.9 ounces and has a start up time of under two seconds.

As with all our Night Vision and Thermal Imaging devices, Night Vision Guys offers competitive pricing on the best devices. The high quality of these devices guarantees that they will meet your expectations and serve you well. Buying these units from guarantees quick handling as well as excellent service and price.

Thermal Imaging

Please note that most thermal devices are built per order.  It may take 3-5 days or more for your order to ship.  If timely shipping is important to you, please, contact us to verify availability prior to ordering. 

Thermal devices can produce various types of images.  Some are color others are monochrome.  In either case change in shade or color indicates temperature differences.

color thermal image thermal bw image

Here is how thermal imaging devices work...

A special lens focuses the infrared light emitted by all of the objects in view.

The focused light is scanned by a phased array of infrared-detector elements. The detector elements create a very detailed temperature pattern called a thermogram. It only takes about one-thirtieth of a second for the detector array to obtain the temperature information to make the thermogram. This information is obtained from several thousand points in the field of view of the detector array.

The thermogram created by the detector elements is translated into electric impulses.

The impulses are sent to a signal-processing unit, a circuit board with a dedicated chip that translates the information from the elements into data for the display.

The signal-processing unit sends the information to the display, where it appears as various colors depending on the intensity of the infrared emission. The combination of all the impulses from all of the elements creates the image.

There are a few key Manufacturers when it comes to thermal imaging.  

ATN: produce such well knows devies as ThOR-HD thermal scope, BINOX-THD thermal binoculars, and OTS-HD thermal monocular.  

FLIR/Armasight: the largest maker of consumer level thermal products is well knows for their full product line.  Zeus thermal scopes, Q14 and Scout monoculars, Helios and Scout binoculars and many more.

Pulsar: a very popular brand for digital night vision and thermal imaging.  Key products include Pulsar Trail and Apex thermal scopes and Pulsar Helion and Quantum thermal monoculars.

Seek: mobile device mounted thermal cameras are the main products of this brand.

Delivery Time and Manufacturing Process for FLIR LS32J Thermal Night Vision Monocular 7.5 Hz:

Most of our manufacturers do not keep products like FLIR LS32J Thermal Night Vision Monocular 7.5 Hz assembled on the shelf. Night Vision tubes are kept separate from the body of the unit. When the order is placed, the manufacturer starts the order processing and assembly process which includes the following:

  • Order processing - we collect all the necessary information including address and phone numbers. We also make sure that our customer ordered the correct product for their needs and that the product can be exported by US law to the country of destination. In some cases a signed export compliance form is required.
  • QC - in this step the manufacturer will inspect all individual parts which will be used to assemble the night vision device for any defects.
  • Production & Assembly - during production, all the parts are put together. Night Vision tubes in inserted into the body of the unit and all the complex electronics for the device are connected. This process takes place in a special lab called the "clean room" as even a small speckle of dust can cause undesired optical effect.
  • QA - one the night vision device is assembled, it goes through a rigorous testing process to make sure it meets all the expected specifications and all parts function as expected. For this most manufacturers have a special "dark room" designed to allow testing of the units without causing incidental damage to the night vision tube by exposure to bright light.
  • Packaging - this is a key process as well. In most case your night vision device will be shipped to you directly from the manufacturer but sometimes needs to be sent to us first. In either case items need to be packaged securely to avoid any kind of damage during transportation.
  • Shipping - as described above items will most of the time ship from the manufacturer. For most domestic orders (unless shipping to POB or AFB) a premium shipper like FedEx or UPS will be used.

Only by following the above steps can we along with our manufacturers bring you - our customer - night vision products of highest quality, However as you can understand the above process can take several days to complete. For example if your device fails QA, the entire process restarts. Also at QC stage a manufacturer may realize that the tube they have in stock has a defect and a replacement tube needs to be ordered. Due to the complexity of this process, it is prudent to expect 3-4 business days for production and handling of the purchased device. Keep in mind that this process is designed to guarantee your satisfaction with the night vision device of your choice.  It occasionally possible to expedite the process for urgent orders but addional fees or other restrictions may apply.

Technical Specifications

Detector Type 336×256 VOx Microbolometer
Focal Length 19 mm Fixed Focus
Field of View
(H x W)
17° × 13°
Digital E-Zoom
Start-up < 2 Seconds
USB Port Video out/Charging/Software Updates/Upgrades
Diopter Adjustment +2
USB Port Video out/Software Updates/Upgrades/Charging
Image Optimization FLIR Proprietary Digital Detail Enhancement
Refresh Rate 7.5 Hz
Polarity White Hot, Black Hot, InstAlert™
Type XX Boresight +/_ XX inches @ xx feet/yards
Weight (with battery) 12.9 oz (365 g)
Size (L × W × H) 6.70” x 2.31” x 2.44”
(172 × 58.7 × 62 mm)
Standard Warranty 2 Year Parts & Labor,
10 Year Detector
Battery Type Internal Battery/Li-Ion
Battery Recharging USB Cable for Internal Battery; AC Adapter; Optional Charging Cradle
Battery Life
(Thermal Imager Only)
5+ Hours Typical *
Rating IP-67 (submersible)
Operating Temp. -4°F to 122°F
(-20°C to +50°C)
Detect Man-Sized Target (1.8 m × 0.5 m) ~600 yds (~548 m) **
  No onboard image/video capture available with LS-Series.
  * 5+ hour battery life is reduced by operation of the Tactical Marking Laser.
  ** Actual range may vary depending on camera setup, environmental conditions, user experience, and display method.

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