... products. Digital Pressure Gauge is an intelligent pressure gauge, high precision and tracking speed, simple operation, reliable, with self ... watchdog technology. Imports of silicon piezoresistive sensor chip. To ensure high accuracy, low drift, reliable, anti-corrosion, anti-vibration, shock, ... signal to 0-5V ,4-20mA DC transmission output. 4, accuracy class 0.2%. 5, relay load capacity: ~ 220V/3A ...