SIG Sauer ECHO MV35 Thermal Monocular 2-16×35 640×512

The SIG Sauer ECHO MV35 is a compact thermal monocular designed for low-light observation, navigation, and situational awareness. It uses an LWIR core to render thermal contrast and supports digital zoom, onboard recording, and mobile app connectivity. The unit ships with two 18500 lithium-ion batteries and offers an extended runtime for extended use in the field.

Key Specifications

• The magnification is 2–16x via digital zoom for variable observation ranges.
• The objective lens measures 35 mm to balance light collection and compact size.
• The thermal core provides 640x512 VGA resolution with 12 µm pixels and a 50 Hz frame rate.
• Sensitivity is listed as <20 mK for fine thermal contrast detection.
• The field of view is specified as 12.40 ft at 100 yd for situational awareness metrics.
• Runtime is rated up to 10 hours under typical operating conditions.
• Power options include an internal reserve cell plus a removable 18500 lithium-ion battery; the package includes (2) 18500 batteries.
• Imaging features include the ability to record still photos and video with audio.
• Connectivity and display options include BDX 2.0 support and 8 selectable color palettes.
• The listed weight is 19 oz and the overall length is approximately 7 inches.

The ECHO MV35 combines a high-resolution thermal core, extended runtime, and modern connectivity in a compact package intended for observers who need reliable performance after dark. Its onboard recording and app integration make it practical for documentation, stakeouts, scouting, and general low-light observation, while the included batteries and protective case support field readiness.