AXIS Q1921-E Thermal Network Camera is a perfect complement to any network video system that needs to secure an area 24 hours a day, seven days a week. The camera uses thermal imaging, which allows users to detect people, objects & incidents in complete darkness & difficult conditions such as smoke, haze, dust & light fog.AXIS Q1921-E is an out-of-the-box, outdoor-ready thermal network camera that is designed to withstand harsh weather conditions. It comes with a built-in heater for the window. It&8217;s ideal for cost efficient 24/7 area or perimeter surveillance of all security applications such as roads, tunnels & airports.AXIS Q1921-E Thermal Network Camera supports H.264 video compression, which reduces bandwidth usage & storage needs by up to 80% compared to Motion JPEG. The camera provides multiple, individually configurable video streams in H.264 & Motion JPEG. Each stream can have its own color palette setting. AXIS Q1921-E has two-way audio support, which allows the user to communicate with visitors & intruders.