Scope 1.1 Zone 2 hazardous locations 2.ⅡA, ⅡB, ⅡC class T1-T6 group explosive gas or vapor;. 3. Indoor and outdoor (IP54, IP65 * need to make when ordering). Technical Features 1. shell is made of glass fiber reinforced unsaturated polyester resin from repression, has a beautiful appearance, corrosion resistance, anti-static, impact resistance and good thermal stability and excellent performance; 2. Built universal switch, button, ammeter (available on request loading other instruments), indicator. 3. There are more than 30 kinds of function switch freely chosen by the user, can be customized according to customer requirements. The universal switch operating mechanism optimized design can automatically find the positive, to ensure rotation ... a flexible, non-catching phenomenon meter range specified by the user 5. 6. 7. Pipe or cable wiring on the factory nameplate only reflect the contents of each sub-unit code for ordering parameter 8. Installation: Li 9. The use of the formula or hanging labyrinth seal design, with good waterproof and dustproof performance; 10. exposed fasteners are made of stainless steel, with anti-swap design allows users to install and maintain.