1. Security or safety department checking and rescue: For checking / exploration building collapse rescue exercises etc. 2. Air or water pipe pipeline inspection and repair: Check for cracks in the pipes blockage corrosion etc. while helping to clear debris. 3. Vehicle Inspection and Maintenance: Check the car engine transmission fuel tank chassis wires etc. 4. High-pressure high radiation high temperature zone detection 5. Instrument or device discovery and testing of internal - Length: 15m - External USB 2.0 interface design - Plug and play suitable for laptop or desktop PC use - 300KP 1/6" CMOS sensor 640 x 480 resolution - Provide dynamic recording AVI format 30 frames per second (Mac OS requires additional software) - Focal Length: 8cm to infinity; Angle: 62 degrees - Lens water resistant design - 4-LED high bright light brightness adjustable - Auto balance AE function - Brightness contrast color adjustable - Using the y-cable dual power supply design streets without connecting the power adapter - Double-shielded cable signal attenuation mode isolate external electromagnetic interference - Can be network webcam use.