SIG SAUER ECHO RV50-LRF 2.5-20x50mm Thermal Riflescope

SIG SAUER ECHO RV50-LRF Thermal Riflescope

The SIG SAUER ECHO RV50-LRF is a long-range thermal riflescope built for hunters and shooters who need identification, ranging, and ballistic guidance in one integrated optic. This exact black model, manufacturer part number SOEC32310, combines a 640 x 512 thermal sensor, a 50 mm objective, 2.5-20x magnification, an integrated 1,000-yard laser rangefinder, and SIG SAUER BDX 2.0 connectivity. It is designed to support confident observation and precise shot planning in darkness, poor weather, and other low-visibility conditions where conventional glass cannot reveal heat signatures.

High-Resolution Thermal Imaging

At the heart of the ECHO RV50-LRF is a 640 x 512 long-wave infrared thermal core with a 12-micron pixel pitch, 50 Hz frame rate, and sensitivity rated at less than 20 mK. The combination is engineered to produce a detailed, fluid image that helps distinguish an animal or other heat source from surrounding terrain. The larger 50 mm objective supports detection and identification at extended distances, while the 8.8-degree field of view provides useful situational awareness. Eight selectable color palettes let the user tailor the display to the environment, target, and personal viewing preference.

Integrated Laser Rangefinding and Ballistics

An integrated laser rangefinder measures targets out to 1,000 yards, placing distance information directly within the optic instead of requiring a separate handheld device. Applied Ballistics Ultralight uses the ranging data with the shooter’s configured ballistic profile to calculate practical range and holdover guidance. This streamlined workflow reduces the number of separate steps between locating a heat signature, confirming distance, and preparing an informed shot solution. The rangefinder is a Class 3R laser product and must be handled in accordance with the included safety instructions.

BDX 2.0 Connectivity

BDX 2.0 support expands the scope beyond stand-alone thermal viewing. When configured through the compatible BDX system, the optic can use ballistic profiles and environmental information to help generate tailored solutions. It also supports live video streaming and onboard recording, allowing a hunt, range session, or observation to be documented without adding a separate camera to the rifle. Because ballistic results depend on accurate rifle, ammunition, and environmental data, users should confirm their profile and verify point of impact at the range before relying on calculated holds.

Optical and Physical Configuration

The 2.5-20x magnification range provides a broad working window for scanning, identification, and precise aiming. The scope uses a 30 mm maintube and measures approximately 15 inches long, 3.5 inches high, and 2.8 inches wide. Its listed weight is 34.9 ounces. The black housing carries an IP67 waterproof rating, helping protect the optic during wet or dusty field conditions. Focus and display controls are arranged for direct access, and a standby mode can shut down the screen to conserve energy and reduce visible light while allowing rapid return to operation.

Extended Field Runtime

A rechargeable internal battery works with one removable 18500 battery to provide a listed runtime of up to 12 hours. The optic draws from the removable cell first and automatically changes to the internal battery when the external cell is depleted or removed. This arrangement permits replacement of the removable battery without shutting down the device. The internal battery charges through the scope’s USB-C connection, while the removable battery can be charged in its compatible charger.

Key Features

• Exact model: SIG SAUER ECHO RV50-LRF, SKU SOEC32310
• Thermal sensor: 640 x 512 LWIR core, 12-micron pixel pitch, 50 Hz refresh rate
• Thermal sensitivity: Less than 20 mK
• Magnification: 2.5-20x with a 50 mm objective
• Rangefinder: Integrated laser ranging to 1,000 yards
• Ballistic support: Applied Ballistics Ultralight and BDX 2.0
• Media: Live video streaming and recording capability
• Display: Eight selectable color palettes
• Runtime: Up to 12 hours with internal and removable battery power
• Durability: IP67 waterproof rating

Designed for Long-Range Thermal Use

The ECHO RV50-LRF brings thermal observation, real-time distance measurement, and ballistic support into a single riflescope. Its high-resolution core and 50 mm objective emphasize detection and identification, while the integrated rangefinder and BDX tools reduce reliance on separate equipment. It is a capable choice for predator management, nighttime observation, and other lawful shooting applications that demand thermal visibility and measured distance. Always follow applicable laws, confirm a safe target and background, and read the owner’s manual before mounting or operating the optic.