Features • Auto and manual release parking barrier setting. • Dry contact for barrier open or close. • Car detection for avoiding barrier hit car. • Send signals to change traffic light (when barrier opens) • Entry station signal output. (after barrier close ) • KG-520 will save close signal when parking barrier is opening. • System will close parking barrier after complete open process. • Open signal has higher priority than close signal when parking barrier is closing. • Car detect signal has higher priority than close signal when parking barrier is closing. • (Car protect function) • Barrier auto close after 1-16 seconds. • Barrier compulsively close after 1~ 16 seconds. • System will send alert message if barrier is in wrong position. • Auto detection of electrical circuit error • 80V~240V switching power supply • Underground or low ceiling parking lot can use folding barrier. • Barrier open angles can be 60°, 70°, 80° or 90°.