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Congratulations on your purchase of a Burris
Thermal Hand Held Sight. Review this manual
thoroughly before using and keep it available
for future reference. This guide explains the
operation of the BTH 25, BTH 35 and BTH 50
models.
CAUTIONS
1. Do not directly expose the thermal imager to high
intensity light sources such as the sun, carbon
dioxide lasers and electric welding machines.
2. The thermal imager combines precision optical
instruments and electrostatically sensitive
electronics, any abuse of the thermal imager and
its accessories can compromise performance and
longevity and may void the warranty.
THERMAL SIGHT
FEATURES
MODEL
TECHNICAL SPECIFICATIONS
BURRIS THERMAL HAND HELD
Detector
25mm 35mm 50mm
Resolution 400×300
Pixel Size 17µm
Optical properties
Focal length 25mm F1.2 35mm F1.2 50mm F1.2
Focusing Manual Focus
Visual angle 15.4×11.6 11.1×8.3 7.8×5.8
Imaging
Frame Rate 50Hz
Digital Zoom 1×—4×
Display
Eye lens 1280×960 color LCOS
Visibility regulation -4
~
＋2
Machine magnification 1.7—6.8× 2.3—9.2× 3.3—13.2×
Power
Adapter 5V DC Special adapter charging
Working hours ≥5 hours @25°C
Interface
USB TYPE C, for Power In/ File Transfer
Video Interface Micro HDMI
External Connection Picatinny rail
POWER
INDICATOR
MODEL
PRODUCT FUNCTION
BURRIS THERMAL HAND HELD
25mm 35mm 50mm
Photo YES
Video YES
Screen brightness 1
~
10 levels
Image brightness 1
~
10 levels
Image contrast 1
~
10 levels
Scene mode Enhanced/Highlight/Nature
Super energy saving YES
Hot track YES
Smooth zoom YES
WIFI YES
Image enhancement YES
Color palettes White hot/Black hot/Red hot/Iron/Blue hot
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