WH-8200BB explosion-proof network camera is a network camera with SONY CCD / 420 line sensor, minimum illumination 0.1 LUX/F1.2, signal-to-noise ratio >48dB, electronic shutter PAL: 1/50s-1/100,000s NTSC: 1/60s-1/100,000s, supports 15 users to watch simultaneously.