Video Borescope Observation Depth 2.4 in to 10 in Monitor Size 3.5 in Camera Size 8 mm Shaft Dia 0.31 in Power Source (4) AA Batteries Shaft Length 39 in Pixel Resolution 320 x 240 Probe Lighting System (4) Adjustable LED Lamps Operating Temp 14 Degrees to 122 Degrees F Manufacturers Warranty Length 1 yr