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The SIG SAUER ECHO CV25 is a compact, ultra-rugged thermal clip-on that transforms your existing day optic into a thermal imaging system — without removing or re-zeroing your scope — and can also run as a standalone thermal sight. At under 5 inches with a Quick-Disconnect Picatinny mount set to the industry-standard 1.535" height, it swaps easily between firearms. Its LWIR 640×512 12µm thermal core (50Hz, ≤20mK sensitivity) paired with a 25mm germanium objective and a 1024×768 AMOLED microdisplay delivers crisp, detailed imaging through darkness, smoke, fog, and brush. BDX 2.0 connectivity adds app configuration and live streaming, while 32GB internal storage records stills and video with audio. Powered by a removable 18650 lithium-ion battery with 9+ hour runtime (a spare is included), and rated IP67 waterproof. Designed to pair best with magnified optics in the 2–3× base magnification range.
| Magnification | 1–8× (1× base) |
| Objective | 25 mm germanium |
| Thermal Core | LWIR 640×512 VGA, 12µm |
| Refresh Rate | 50 Hz |
| Sensitivity (NETD) | ≤20 mK |
| Display | 1024×768 AMOLED |
| Field of View | 17° |
| Color Palettes | 8 |
| Storage | 32 GB internal |
| Connectivity | BDX 2.0 app, live streaming |
| Mount | QD-lever, M1913 Picatinny (1.535" height) |
| Battery | (1) 18650 Li-ion, 9+ hr (spare included) |
| Waterproofing | IP67 |
| Length | 4.96 in (126 mm) |
| Width | 2.99 in (76 mm) |
| Height | 3.07 in (78 mm) |
| SKU | SOEC22100 |
BEST PRICES PERIOD
WE PRICE MATCH
We'll match any price from any reputable dealer. Almost always, our price is already better!