Company under the existing GA386-2002 standard, developed by computer control fire shutter. The unique design, complete function, anti-interference ability, reliable performance, interface Chinese label, easy installation and adjustment simple and quick, cheap and so is the best of modern fire shutter accessory products. 
 Product Features 
 1, a key setting function (no DIP switches and potentiometers) 
 2 Press any key to escape 
 3 with a step down, two step-down, delay reduction 
 4 functions to prevent the positive and negative volume offside 
 5 with AC contactors and air switch, interface Chinese mark 

 Convenient debugging simple, no professionals. No DIP, jumper, all the buttons debug solution and more. Replacement products a year, according to special requirements of customers change and Wanted agents dealers.