BORESCOPE Features:  5.5mm O.D. probe can be easily inserted through most openings 3.5" extra-wide view angle camera takes high resolution 640 x 480 pictures and TFT monitor provides clear, full images with minimal image loss Video output function can transfer video images to a remote monitor or TV Stepless illumination adjustment With 4 high-brightness white LED light sources, every detail of your target can be illuminated Optimized illuminated design can highlight most cracks and burn marks on highly reflective surfaces Oil and scratch-resistant tempered glass not only protects the camera, but also maintains the high image resolution Skidproof, anti-shock ergonomic design allows for greater mobility and enhanced images Perform all tasks with easy to operate multi-function keys You can easily install different probe assemblies right in the field 1GB memory card can hold 280, 000 photos Records up to 4 hours continuously after a 2-hour charge ( using AC adapter)  Specification:  Image Sensor Resolution: Dynamic: 320( H) x 240( V) ; Static: 640( H) x 480( V) Frame Rate: 30 fps S/ N Ratio: 42 dB Exposure: Automatic White Balance: Fixed Field of View ( FOV) : 67°  Depth of Field ( DOF) : 1.5cm - 10cm Light Source: 4 white LEDs, 0-275 lux/ 4cm Display: 3.5" TFT LCD monitor, 320x240 pixels Interface: Mini USB 1.1/ AV Out/ AV In Video Out Format: NTSC & PAL Recording Medium: SD card ( 1GB, upgradeable to 2GB)  Power Supply: 110-220 VAC to 5.5 VDC adapter Dimensions of Probe: 5.5mm tip diam. x 1m