G-200 is the system of value pricing with best technology from the experience of Factory Automation field. It provides a safe and field-proven quality around the world.① The ABS resin case. ② One touch on/off, and easy mounting to the DIN rail ③ High performance with the exclusive imbedded controller. ④ High durability with industrial parts and SSR ( Solid State Relay) employing. ⑤ Bar reopen function during descent by the external signal. ⑥ Accepting additional input signals : manual switch, card reader, vehicle detector and etc.