The Sig Sauer ECHO RV50-LRF 2.5-20x50 Thermal Riflescope sits at the top of the ECHO R lineup, built for hunters and shooters who demand long-range thermal performance with integrated ranging and ballistic solutions in a single system. The 640x512 12µm LWIR thermal core delivers crisp detection and refined target identification at extended distances, backed by a 50mm objective lens that pulls in serious light and detail regardless of conditions.
An integrated 1000-yard laser rangefinder feeds directly into BDX 2.0 connectivity and Applied Ballistics Ultralight, generating accurate shoot-to solutions in real time — no guesswork, no manual holds. Variable 2.5-20x magnification, 8 color palette options, onboard video recording, and up to 12 hours of battery life make this the only thermal riflescope you'll need from last light to dead of night.
- Sensor Resolution: 640x512 LWIR 12µm (50Hz)
- Sensitivity: <20mK NETD
- Magnification: 2.5–20x
- Objective Lens: 50mm
- Maintube Diameter: 30mm
- Field of View: 8.8°
- Integrated Laser Rangefinder: 1000 yards
- BDX 2.0 Enabled: Yes — live video streaming and system integration
- Applied Ballistics Ultralight: Yes
- Color Palettes: 8 selectable
- Video Recording: Yes
- Battery: Internal + 1x 18500
- Runtime: Up to 12 hours
- Overall Length: 15.0"
- Width: 2.8"
- Height: 3.5"
- Weight: 34.9 oz
- Waterproofing: IP67
- Finish: Black
- Type:
- Scope
- Detection Range:
- 1000+ Yards
- Video Recording:
- Yes
- Sensor Resolution:
- 640x512 LWIR 12µm
- Display Resolution:
- 640x512
- Magnification Range:
- 2.5-20x
- Refresh Rate:
- 50 Hz
- Battery Life:
- Up to 12 hours
- Weight:
- 34.9 oz
- Integrated Rangefinder:
- Yes — 1000 yards
- BDX 2.0 Enabled:
- Yes
- Waterproof Rating:
- IP67
