Overview 
 The product according to the standard GB3836-2000, MT 209-90, MT 210-90 design and manufacture of relevant content. The product gas and coal dust in a coal mine explosion hazard environments, it is proof technology and liquid crystal display technology combined with small size, image clarity, color fidelity and other features, you can actually live underground Through a variety of situations is reflected in the real video image. 
 1. Equipment, use of environmental conditions: 
 ? ambient temperature 0 ~ +40 ℃; 
 ? relative humidity ≤ 95% (+25 ℃); 
 ? atmospheric pressure 80 ~ 106kPa; 
 ? no significant vibration and impact areas; 
 ? gas and coal dust explosion hazard with the coal mine. 
 2 Function 
 Video signal can be displayed in the form of images. 
 3 Specifications 
 1 power supply 
 ? Working voltage: AC127V; 
 ? input apparent power: 100 VA. 
 2 proof mark: Exd Ⅰ 
 3 shows the screen 
 ? Effective Display Size: 17-inch (diagonal); 
 ? Effective Display aspect ratio: 4:3. 
 4 video signal input 
 ? Interface Quantity: 1; 
 ? Input signal: peak to peak video signal: 1V (positive polarity, the whole television signal, 75Ω unbalanced load.) 

 5 Dimensions (L × W × H): 473 mm × 200 mm × 396 mm, shown in Figure 3-1; 

 6 Weight: about 31Kg.