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The Observer 160x120 25mm Thermal Imager from Night Optics is more compact and lightweight observation tool than its peers. It is intended for observing livestock and wildlife, surveillance, security, or search and rescue. The 160x120 uncooled ASI FPA microbolometer and 25mm f/1.0 lens system enables a maximum detection range out to 500 yd. Images are viewed through a 1x eyepiece on a 640x480 OLED display with a 2x digital option. Three reticles, nine selectable color schemes and two polarities provide customizable viewing to suit the situation or personal preferences. An on-board SD memory card slot enables video and still images to be captured, stored, and viewed on the Observer. A video-out port allows the use of an external monitor or recording device.
The Observer also offers several power options. It comes with a rechargeable battery pack with a 3hr maximum runtime. Included with the imager is a 12VDC car adapter and a 110VAC US wall plug. Rubberized armor protects the weatherproof housing from impacts and drops. A wide -4 to 122°F operating temperature allows it to be used in most locations. The Observer is just 7.1" long and weighs just over a pound.
Uncooled ASI FPA microbolometer: 160x120
25mm f/1.0 fixed focus lens system
1x optical magnification, 2x digital zoom
9.2°x6.9° field of view
16' minimum focus distance
Detection range: 500 yd maximum
Display: 640x480 OLED
Brightness and contrast control: full auto, semi-auto or manual
Calibration: auto and manual
Still-image and video capture capabilities
Video signal types: NTSC and PAL
Video out serial port at 320x240 resolution
Three selectable crosshairs
Crosshair: A conventional crosshair reticle with thin hairs on both axes
Broken-center crosshair: Thin hairs on the outside, stopping near the center to provide an unobstructed view of the center aiming area
Broken-center with aiming point: Thin hairs on the outside, stopping near the center with a small center aiming point
Use and Handling
Real Time Tracking places a bracket around the 'hottest' point and tracks it as it moves through the field of view
Polarity options: Black Hot, White Hot
Nine selectable color schemes
SD memory card slot with 4GB card included
In-view OSD battery status indicator in 25% increments
Runs on the included battery pack, 12VDC or 110VAC external power
Playback stored files and view on OLED display
Protective rubberized armoring
Wide operating temperature range: -4 to 122°F
Lightweight: 16.6 oz
In the Box
Night Optics Observer 160x120 25mm Thermal Imager
Rechargeable Battery Pack
110VAC Battery Charger
12VDC Car/Vehicle Charger
External Power Cable
4GB SD Card
Carrying Case with Strap
Limited 2-Year Warranty
Table of Contents
160x120 uncooled ASI FPA microbolometer
NTSC: 60 Hz PAL: 50 Hz
Thermal Sensitivity (NETD)
1x optical 2x Digital
25mm f/1.0 fixed focus
Field of View
9.15° x 6.87°
Minimum Focus Distance
16' (5 m)
Video: AVI Still: Bitmap
Signal: NTSC / PAL Resolution: 320 x 240
640 x 480 OLED
SD card slot
Rechargeable battery pack 12 VDC with included adapter 110 VAC with included adapter
3 hr maximum, with battery pack
-4 to 122°F (-20 to 50°C)
7.1 x 3.8 x 2.6" (18.2 x 9.7 x 6.8 cm)
16.6 oz (470 g)
Night Optics Observer 160x120 25mm Thermal Imager Review