Available in 2 models (differ only in objective lens diameter), the Sig Sauer ECHO3 Thermal Reflex Sight is the most innovative, direct view thermal imaging sight in the world. The ECHO3 uses SIG SAUER BDX technology and can record both video and images in 8 different color palettes and has 6 brightness settings. It also comes with Sig Sauer's BDX Enabled WiFi/Bluetooth, allowing active reticles that change with
Sig Sauer KILO Rangefinder input.