Intelligent pressure switch with diffused silicon or ceramic piezoresistive sensor as the sensing element, through precision instrumentation amplifier, AD converter and a stable MCU processing, real-time display of the current pressure, pressure switch, and an alarm signal when the pressure reaches the alarm value, mechanical pressure switch, and with one 4-20mA analog current signal output, and meet most of the requirements of process control. Because of their ease the controller sets, visual display, digital pressure switch, in production, oil transportation, hydraulic / pneumatic control has a broad application control delay H001 / H000 Off / On feature is turned on: When the pressure reaches the operating point , the controller does not immediately action, delayed action, pressure switches how much money, time delay action can be set. Set the control delay can be prevented because the pressure inside the pipe is unstable, resulting in frequent start motor will damage motor analog pressure switch, tour grace (certified), a pressure switch is provided by Beijing Tour TU Technology Limited. Beijing Tour En Technology Co., Ltd. (www.bjyouen.com) (www.bjyouen.com) is the Beijing Haidian District, chemical instrumentation leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. Well leader in travel with the staff warmly welcome all inquiries negotiations to create a better future tour grace.