Applicable scope: Is suitable in has 1 area, 2 areas includes IIA, a IIB kind of flammable gas (temperature group do not be the explosive mixture place which T1～T6) or the steam and the air forms, also is suitable for 20 areas, 21 areas, 22 areas includes the ignitable dust mixture the place, the realization real-time monitoring, security instead steals, long-distance dispatch and so on multitudinous function. Characteristic: The elegant appearance, dexterous is easy to install; Rainproof, dustproof integrated design, may reach the IP66 protection standard; Uses most advanced SONY Super_HAD CCD, causes the phantom to be day by day perfect.