SIG SAUER's new ECHO SV35-LRF is the result of years of electro-optic innovation. It comes equipped with an LWIR 640x512 VGA 12um 50Hz thermal core with =20mK sensitivity, allowing the ECHO SV35-LRF to pick up heat signatures from extreme distances. The ECHO SV35-LRF is also outfitted with BDX 2.0 onboard software, Applied Ballistics Software, a full on-board environmental sensor suite, and an integrated laser rangefinder, allowing users to calculate a ballistic solution that accommodates bullet drop. Features: LWIR 640x512 VGA 12um 50Hz thermal core with =20mK sensitivityRecord still photos and video with audioBDX 2.0 enabled, including Applied Ballistics Ultralight with complete AB bullet database, full on-board environmental sensor suite, and live video streamingIntegrated 1000y laser rangefinderRechargeable and removeable 18650 lithium-ion batteries with 11-hour runtime on a single chargeConfigure settings and download media with the BDX AppCantilevered picatinny rail mountShips with (4) 18650 batteries, USB-C cable, flip back lens covers, removable eyepiece, and hard plastic case Sig Sauer ECHO SV35-LRF 1.5-12x35mm LWIR 640x512 VGA 12um 50Hz Laser Rangefinding Thermal Sight w/BDX 2.0 SOEC12210, 10.7" x 4" x 3.5"