This camera utilizes a 0.33-inch black-and-white Sharp CCD (charge-coupled device) image sensor, with up to 512 by 492 effective pixels. Built with a 3.6-millimeter fixed lens, the STO-809CH has a high resolution of 420 horizontal TVL (TV lines), and is extremely light sensitive with a minimum illumination of 0.01. The IP68 (Ingress Protection) rating means this unit has a protection level of six against solid-body ingress, and a protection level of eight against the ingress of water. Six is the top protection level against solid bodies, meaning the STO-809CH is certified dust proof. Eight is the top protection level against water, meaning this unit will protect your camera for long periods of immersion under pressure. The STO-809CH features a built-in electronic auto-iris for automatic light compensation, and has a shutter speed ranging from 1/60 to 1/100,000 of a second. This unit runs on 12-volt DC power, and has an operating temperature of five- to 131-degrees Fahrenheit.