System function mode, press SET button for 3 seconds to enter the system settings, then press the SET button in order to display the following function mode. Pressure Switch. After all the function mode setting is completed, press (ON / OFF) key to setting run automatically stored in a computer chip. Through ten years of continuous efforts, Tianli intelligent controller technology matures pressure switches, pressure sensor switch, tour grace (certified merchants) are provided by TU Technology Co., Ltd. Beijing tour. Beijing Tour En Technology Co., Ltd. (www.bjyouen.com) (www.bjyouen.com) is specialized in "pressure transmitters, pressure switches, flow meters, flow switches, temperature transmitters, temperature switches," the enterprise, the company Adhering to the "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Ms Fung.