... technology. Imports of silicon piezoresistive sensor chip. To ensure high accuracy, low drift, reliable, anti-corrosion, anti-vibration, shock, long ... the pressure is greater than the upper limit, the limit indicator light, buzzer sound, the output relay J1 action. Pressure ... limit indicator light, the output relay J2 action. Pressure signal to 0-5V ,4-20mA DC transmission output. 4, accuracy class ...