This is an amazing compactthermal imager, with a feature set unbeatable for the price.  It can fit in a shirt pocket, weighs about 13ounces with 2 AA batteries (Lithium Ion strongly recommended), but also has atripod mount and output for video recording.

It operates in multiplemodes, focuses to approximately 1 foot or less (‘ve used it to locate smallkittens trapped in bushes at night) and has consistent sharp images.  The 320x240 image is sharp and objects areeasily recognizable.  I have used it togo on uneven trails in near total visual darkness.

Features  a digital zoom to magnify objects 2x, 3x, or4x and can detect human activity past 2400'. A rear pushbutton selection switchand navigation dial gives you control of the menu-driven functions and settingsand can easily be used left or right handed. The included Windows OS softwareCD give you the ability to tailor aspects of the functionality like the colorscheme, temperature measurement, and the user-interface to your specific needs,and to save multiple preferences for different situations.  

Designed for rough useoutdoors in the field, it is waterproof and submersible to 3.3'; and even withbatteries is buoyant. Built to MIL-STD-810G, Method 516.6 standards, it isshockproof and able to withstand drops of up to 6'. Its rubberized housinghelps protect it from drops and impacts while providing a slip-resistant grip.For long-duration observation, a 1/4"-20 tripod mount on the bottom givesyou a hands-free option.

It is in the original case,with all accessories included in the original packaging. I used it about half adozen times, and everything is in like-new condition.  Very nice for security, hunting, wildlife surveysand rescue, backcountry backpacking, etc. 

    Amorphous silicon microbolometer

    Spectral response: 7 to 14 μm

    Thermal sensitivity: ≤ 40mK

    Color LCD screen with 320 x 240 resolution

    NTSC video format

    Rear outlet video port for simultaneousrecording

    Detects human activity out to 2410' (735 m)

    Digital zoom: 2x, 3x, or 4x

    Frame rate: 30 Hz

    Long eye-relief view finder for use withglasses, face shields, masks, etc

    Close focus distance: 3.3' (1 m)

    Field of View: 12° × 9°

Use and Handling

    Left or right-hand operation

    Five-second start-up time

    White hot, black hot, and 3 color modes

    Fully automatic brightness and contrast

    Push-button control to activate featureset, rotating dial for feature selection through a menu-driven system

    Scene temperature readout andtemperature-based colorization

    On-screen battery level indicator

    Tripod mount with 1/4"-20 thread

    Runs on two AA lithium batteries

    Knurled focus knob

Construction Details

    Rubber-armored housing with slip-resistantgrip

    Waterproof and temporarily submersible to3'

    Buoyant even with batteries

    MIL-STD-810G, Method 516.6 shockproof towithstand up to a 6' drop

    Integrated angled eyecup blocks peripherallight leakage

    Compact 5.25 x 4.5 x 2" form-factor

    Lightweight at only 13 oz with batteries

    Tactile battery-loading feature forchanging batteries in the dark