SIG SOEC32200 ECHO RV35 640X512 2-16X35

The SIG Sauer ECHO RV35 is a 2-16x35 thermal rifle scope built for hunters and operators who need serious identification capability at distance without lugging around an optical cannon. This is a high-resolution thermal scope that balances magnification range, portability, and performance—the kind of tool that lets you differentiate game or threats confidently across changing terrain and light conditions. The 35mm objective and 640x512 thermal sensor mean more detail and clarity than entry-level thermals, which matters when you're trying to make a confident shot at 300 yards or confirming what's moving through that dark timber.

The core is a LWIR 12-micron 50Hz thermal engine with sub-20mK sensitivity—industry-standard thermal specs that translate to reliable target detection in the field. The scope's advanced image processing keeps that detail sharp across the full magnification range, so digital zoom doesn't turn your target into thermal soup. At 12 hours of runtime on an internal battery, you can hunt dawn patrol through dusk or pack it for an overnight operation without reaching for spare power. It's IP67 waterproof, meaning dunking, rain, and sweat won't kill it.

The RV35 is BDX 2.0 enabled—wireless streaming, recording, and configuration straight from your phone. That's useful for training, documentation, or just reviewing footage to improve your fieldcraft. At 31 ounces and 14.8 inches long, it sits on a rifle without throwing your balance off, and the 30mm maintube is standard on modern tactical platforms. Eight color palettes let you dial in the contrast and visibility you prefer in real-time conditions.

This is the versatile middle child of the ECHO R family—more capable than the RV25 for long-range or low-contrast hunts, more packable and affordable than the RV60. If you hunt coyotes, hogs, or varmints at night, or if you're serious about extended-range thermal hunting, the ECHO RV35 is built to earn its seat on your rifle.

Key Features

• High-resolution 640x512 thermal sensor for confident target identification at distance
• 2–16x magnification with advanced image processing that maintains clarity across digital zoom
• 35mm objective lens balances field of view with extended effective range
• LWIR 12µm 50Hz thermal core with <20mK sensitivity for reliable detection in varied conditions
• 12-hour battery runtime—extended hunts and overnight operations
• BDX 2.0 enabled: wireless streaming, video recording, and system configuration via smartphone
• IP67 waterproof construction withstands immersion, rain, and field abuse
• Eight selectable color palettes for real-time contrast adjustment
• Lightweight at 31 ounces with compact 14.8-inch length for reduced shooter fatigue
• 30mm maintube compatible with standard modern tactical rifle platforms

Specifications

Frequently Asked Questions

What's the difference between the ECHO RV35 and other thermal rifle scopes in the SIG lineup?

The RV35 sits in the middle of the ECHO R family, offering the high-resolution 640x512 thermal sensor and 35mm objective for better detail and range than entry-level options, while remaining more compact and packable than the larger RV60. It's the versatile choice for hunters who want serious identification capability without excessive size or weight.

Can I use the ECHO RV35 on a standard rifle mount?

Yes. The scope has a 30mm maintube, which is compatible with standard modern tactical and hunting rifle platforms that accept 30mm scope rings. Height and overall length (14.8 inches) are designed to work on typical AR and bolt-action setups without excessive mounting complications.

What does BDX 2.0 do, and how does it help in the field?

BDX 2.0 enables wireless streaming, video recording, and system configuration via your smartphone. You can review footage, adjust settings remotely, or share video from the field—useful for documenting hunts, training, and improving your fieldcraft decisions.

How long does the battery last on a full charge?

The ECHO RV35 is rated for 12 hours of runtime, designed to support extended dawn-to-dusk hunts or overnight operations. It uses an internal rechargeable battery plus one user-supplied 18500 cell.