Video Borescope Observation Depth 1.18 in to 2.75 in Monitor Size 3.5 in Camera Size 8.5 mm Shaft Dia 0.33 in Image Video Recording No Power Source (4) AA Batteries Shaft Length 3 ft Pixel Resolution 320 x 240 Probe Lighting System LED Lamp Operating Temp 32 Degrees to 113 Degrees F Manufacturers Warranty Length 90 day