SIG SAUER Introduces New ECHO3 Thermal Reflex Sight with BDX Technology

    ECHO3 Thermal Reflex Sight (SIG Sauer)

    SIG Sauer Electro-Optics have launched their new ECHO3, a direct view thermal reflex sight. The ECHO3 will be available in either 1-6x or 2-12x magnification and has SIG Sauer’s Ballistic Data Xchange 2.0 integrated to allow the optic to interface with smartphones to allow reticles and settings to be tweaked. The new thermal sight will begin shipping this spring.

    The new thermal sight has 11 colour palettes and 6 brightness settings (SIG Sauer)

    SIG SAUER Electro Optics is pleased to introduce the ECHO3 Thermal Reflex Sight. The ECHO3 is a direct view thermal sight, utilizing SIG SAUER BDX technology, with the capability to capture images and record video in eight different color palettes.

    “The ECHO3 is an ultra-compact, lightweight direct-view thermal sight,” said Andy York, President, SIG SAUER Electro-Optics. “The innovative direct-view thermal display on the ECHO3 is a massive improvement over traditional eyepiece style thermals which induce eye fatigue and force the shooter to look through the sight. The ECHO3 allows the shooter to sit back and view the thermal display and when targets are identified, the new BDX reticle technology allows for exact aiming solutions in real time.”

    The SIG SAUER Electro-Optics ECHO3 is a compact thermal reflex style sight available in a 1-6x or 2-12x magnification, equipped with Ballistic Data Xchange (BDX 2.0), the ECHO3 can be used with 9 different onboard SmartBDC™ ballistic holdover reticles or it can be paired with any KILOBDX rangefinder. The ECHO3 features a motion activated MOTAC™ display that powers up when it senses motion with over 6 hours of continuous runtime, and offers video and image recording in eight color palettes, and six brightness settings. The ECHO3 Includes a quick disconnect mount, with an easy to adjust zoom lens with throw lever attachment.

    ECHO3 Thermal Reflex Sight Specs:

    • Sensor: 320×240 12UM VOX LIWR Core

    • Magnification: 1-6x or 2-12x

    • Adjustment Increments: 0.5MOA

    • Objective Lens Diameter: 23mm (1-6)/ 40mm (2-12)

    • Illumination Settings: 6 Brightness Settings

    • Color Palettes: 8 Color Palettes – Red, Red Hot, Black Hot, White Hot, Edge, Tyrian, Iron and Fire

    • Overall Length: 4.1 in (1-6) / 4.7 in (2-12)

    • Overall Width: 2.6 in.

    • Overall Height: 3.1 in (1-6) / 3.6 in (2-12)

    • Weight: 14.5 oz. (1-6) / 16.6 oz. (2-12)

    • Waterproofing: IPX6

    • Battery Life: Greater than 6 hours of heavy usage utilizing two (2) CR123 Lithium Batteries

    • Total Elevation Travel: 150MOA x 150MOA

    • Assembled In USA

    The ECHO3′ reticle options (SIG Sauer)


    – Compact Thermal Reflex Style Sight (Don’t get Stuck “Behind” a Scope)
    – BDX Enabled WiFi/Bluetooth®, Allowing Active Reticles that Change with KILO® Rangefinder Input, and Customizable Fixed Reticles that are Configured from the BDX Mobile Application
    – Uncooled 320×240 12um VOx LWIR Core Operating at 30Hz (ITAR Controlled)
    – LevelplexTM Anti-Cant System with Scope Cant Sensitivity down to 0.5°
    – MOTACTM (Motion Activated Display) Powers up when it Senses Motion
    – Video and Image Recording (including recoil activation) with 11 Color Palettes
    – Greater than 6 Hours of Run Time with Heavy Use
    – Easy to Adjust Lens with Optional Throw Lever Attachment
    – Optional Quick Disconnect Mount
    – Designed and Assembled in the U.S.A. to Withstand IPX-6 Conditions
    – Aspheric Lens (10° FOV) with up to 6X Digital Magnification
    – Designed for Predator and Hog hunters
    – Improved Situational Awareness

    The ECHO3s will be available from retailers and on SIG SAUER’s web store from the spring, with an MSRP of $3,899.99 for the 1-6x and $5,199.99 for the 2-12x. Find out more at

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    Matthew Moss

    _________________________________________________________________________ – Managing Editor – Managing Editor

    Matt is a British historian specialising in small arms development and military history. He has written several books and for a variety of publications in both the US and UK. He also runs Historical Firearms, a blog that explores the history, development and use of firearms. Matt is also co-founder of The Armourer’s Bench, a video series on historically significant small arms.

    Here on TFB he covers product and current military small arms news.

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