With imported silicon piezoresistive sensor chip,digital pressure gauge is intelligent, precisious and reliable. Product ... of digital filtering techniques, watchdog technology. Imports of silicon piezoresistive sensor chip. To ensure high accuracy, low drift, reliable, anti- ... output relay J2 action. Pressure signal to 0-5V ,4-20mA DC transmission output. 4, accuracy class 0.2%. 5, relay load capacity ...