Sig Sauer ECHO RV50-LRF Thermal Sight 2.5-20x50mm, 640x512 Core
Long-range thermal precision with integrated ranging intelligence.
Made for thermal superiority, the ECHO® RV50-LRF thermal riflescope delivers the most advanced capability in the ECHO R lineup. Featuring a larger 50mm objective lens and an integrated 1000-yard laser rangefinder, the RV50-LRF provides superior detection, refined identification, and real-time ranging data. Paired with BDX 2.0 and Applied Ballistics Ultralight, it delivers tailored shoot-to solutions that eliminate guesswork and empower confident long-range engagements—day or night.
The ECHO R is covered by the SIG SAUER® ELECTRO-OPTICS Infinite Guarantee.
The ECHO R lineup is available in three models:
- ECHO RQ35 Thermal Riflesight, 3.5-28x 35mm, 384x288 core
- ECHO RV35 Thermal Riflesight, 2-16x 35mm, 640x512 core
- ECHO RV50-LRF Thermal Riflesight, 2.5-20x 50mm, 640x512 core, LRF
Sig Sauer Electro-Optics Technology:
Infinite Guarantee - SIG SAUER Electro-Optics are guaranteed forever. It's an unlimited lifetime guarantee.Ballistic Data Exchange 2.0 - Ballistic Data Exchange is a rangefinder and riflescope system that uses your ballistics, environmental conditions and Bluetooth to illuminate the exact holdover dot. BDX 2.0 is the Software Update that includes a new easy mode for quick BDX setup out of the box, including: BDX kits come paired and bonded. BDX Quickbond™ system gives users the ability to bond two BDX enabled devices without the smartphone app. BDX equipped KILO™ rangefinders preloaded with ballistic groups for centerfire rifles, muzzleloaders and crossbows. 100% compatible with BDX smartphone app to access the advanced BDX features in configuration options.
LightWave DSP™ - Lightwave DSP (Digital Signal Processing) engine leverages HyperScan– an advanced power management technique that provides the fastest refresh rate in scan mode (4 times per second) even at distances over a mile. Our DSP engine uses the latest generation Field Programmable Gate Array (FPGA) running sophisticated signal processing algorithms to reduce false positives while finding weak or distant targets.
Motac™ - Activated through motion sensing technology, MOTAC immediately powers up illumination when it senses motion and powers down when it does not in order to extend battery life.
LensArmor™ - Abrasion-resistant lens coatings for extreme durability ensure the lenses on your scope will stay sharp, bright, and clear.
Angled Modified Range™ - Angled Modified Range technology uses an onboard inclinometer that reads the incline/decline angle and modifies the effective ballistic shooting range to the target. AMR is the equivalent horizontal range and integrates perfectly when used in combination with SIG Ballistic Turret Dials.
KinETHIC™ Kinetic Energy Indicator 2.0 - Allows a hunter to set a threshold in either ft-lbs or fps for the ethical harvest of game animals. BDX will compute distance ranged and indicate when you drop below the user-set threshold for energy or speed of bullet on target.
Hyperscan™ - Features the fastest, most accurate range acquisition algorithms by analyzing targets 4 times per second and displaying the results on stationary or moving targets within a quarter of a second.
Included in the box:
- ECHO Thermal Riflesight
- Flip Back Lens Cover
- Removable Eyepiece
- (2) 18650 Lithium-ion Rechargeable Batteries
- Battery Charger
- USB-C to USB-C Data Cable
- 1.535" 30mm ALPHA6 Scope Rings
- Lens Cleaning Cloth
- Thermal Zeroing Target
- Quick Reference Instructions
This product is subject to the International Traffic in Arms Regulations (ITAR). You many not export, re-export, resell, transfer or otherwise dispose of this product to any other country without first obtaining approval from the U.S. Department of State, Directorate of Defense Trade in accordance with the ITAR, Title 22, and Code of Federal Regulations Part 120-130. Diversion contrary to U.S. law is prohibited.
- LWIR 640x512 12µm 50Hz thermal core with ≤20mK sensitivity
- 50mm objective lens - maximizes detection and identification at extended distances
- Integrated 1000-yd laser rangefinder
- Applied Ballistics ultralight - delivers accurate range and holdover solutions
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SIG SAUER BDX 2.0 enabled - full system connectivity with live video streaming and recording
- Configure settings and download media with the BDX App
- Built for precision applications - ideal for predator management and long-range shooting
- 8 selectable color palettes
- Rechargeable and removable 18650 lithium-ion batteries with 12-hour runtime on a single charge
- Ships with (2) 18650 batteries, USB-C cable, flip back lens cover, and removeable eyepiece and 1.535" 30mm ALPHA6 rings
- SIG SAUER® Infinite Guarantee™
| Specifications | RV50-LRF |
| Magnification | 2.5-20x |
| Focal Length | 50mm |
| Resolution | 640 x 512 |
| Pixel Pitch | 12 µm |
| Thermal Sensitivity (NETD) | ≤ 20mK |
| Frame Rate | 50 Hz |
| Angular FOV | 8.8° |
| Display Type | OLED |
| Display Resolution | 1024 x 768 |
| Color Palettes | 8 |
| BDX Enabled | Yes |
| Ballistic Profiles (BDX App) | Yes |
| Video/Audio Recording | Yes |
| Image Capture | Yes |
| Media Storage | 32 GB |
| Communications | Wi-Fi / Bluetooth |
| Laser Rangefinder | Yes |
| Max. Measuring Range | 1000 yd |
| Laser Safety Class | Class 3R |
| Picture-In-Picture | Yes |
| Mount Type | 30mm Rings |
| Dimensions (LxHxW) | 15.0" x 3.5" x 2.8" |
| Weight (w/ batteries) | 34.9 oz |
| Battery | Internal + 1 Removable 18650 |
| Runtime | 12 hours |
| Waterproof rating | IP67 |
| Warranty | Lifetime |