GENERAL DCS1700 Video Borescope, 3.5 In, 39 In Shaft. More details: Video Borescope, Observation Depth 0.4 to 12 In., Monitor Size 3.5 In., Camera Size 5.5mm, Shaft Dia. 0.22 In., Video, Image Recording, Power Source (4) AA Batteries, Shaft Length 39 In., Pixel Resolution 320 x 240, Probe Lighting System (4) Forward Facing LED Lamps and (2) Angled LED Lamps, Operating Temp. 32 Degrees to 122 Degrees F Console, -4 Degrees to 140 Degrees F Probe, Manufacturers Warranty Length 1 yr.