SIG Sauer ECHO SV50 LRF: A Game-Changer in Thermal Optics


Today, I’m diving into the SIG Sauer ECHO SV50 LRF, a thermal sight that’s not just impressive for its features, but for its lifetime warranty – something unheard of in the thermal industry. From its crisp 640 sensor and built-in laser rangefinder to the seamless integration with SIG’s BDX app, this optic is built for serious hunters and shooters. I’ve field-tested it at different ranges, and while I had a few misses, the overall performance really stood out. Check out the video for the full breakdown and my honest thoughts on this new thermal powerhouse.

Check Out the Full Video Review of the SIG ECHO SV50 LRF

SIG ECHO SV50 LRF Specs

FeatureSpecification
Magnification2x – 16x (Digital Zoom)
Field of View8.8°
Frame Rate50 Hz
Resolution640×512
Color Palettes8 color palettes
Video RecordingYes
BDX EnabledYes
Runtime11+ Hours
Battery TypeTwo 18650 rechargeable batteries
WaterproofingIP67
OLED Screen Resolution1024×768
Pixel Pitch12 Micron
Thermal Sensitivity≤ 20 mK
CommunicationsWi-Fi / Bluetooth
Media Storage32 GB
Overall Height3.5 in (88 mm)
Overall Length10.7 in (273 mm)
Overall Width4.0 in (102 mm)
Weight (w/o Battery)30.5 / 31.3 oz (867 / 888 g)

Visit SIG Sauer for more information on the SIG ECHO Thermal.

About the author: is the Managing Editor at GunsAmerica. He’s a competitive shooter, hunter, instructor & attorney. You can see and follow his adventures on Instagram. @true1911 https://www.instagram.com/true1911/

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