Excellent camera used for underground,underwater,drain,sewer,pipe,duct,tubes inspection DUCT INSPECTION CAMERA SYSTEMTechnical specificationsCamera1. Color camera with sapphire glass lens2. Wide viewing angle 120°3. Illumination 12 white LEDS4. Operating temperature -20°F ~ 120°F (-28°C ~ 50°C)5. Stainless steel house Stainless steel 304PAL output1. NTSC output: 720X576(PAL), 720X480(NTSC)2. ...