1. Key Technical Specifications Measuring medium: Hydraulic oil, compressed air, cooling water, steam, slightly corrosive industrial fluid Measuring range: Customizable from 0–0.1MPa to 0–300MPa Wetted parts material: 316L / 17-4PH stainless steel Operating temperature: -40℃ ~ +125℃ with full-range temperature compensation for zero point and span Measurement accuracy: ±0.25%FS ~ ±1.0%FS Safe overload: 2–5 times full scale; burst pressure reaches 10 times rated pressure Response time: ≤8ms Protection class: IP67 dustproof and waterproof Supply voltage: 5VDC, 12VDC, 24VDC industrial universal power supply Output signal: 0–5V, 0–10V, 4–20mA, RS485, I2C digital signals Vibration resistance: 10–35g, anti-shock and anti-pressure surge Service life: More than 8 million pressure cycle tests, excellent long-term stability 2. Core Function Real-time continuous pressure detection in harsh working conditions with high temperature, strong vibration and pressure impact. Provide stable pressure feedback signal for closed-loop control of hydraulic pumps, proportional valves and air compressors to maintain system constant pressure. Support overpressure and underpressure safety protection, trigger alarm or equipment stop to avoid pipeline burst and mechanical damage. Oil-free and gasket-free internal structure eliminates leakage risk, suitable for high-temperature steam, high-viscosity oil and clean medium measurement. Built-in EMC anti-interference, reverse connection and short-circuit protection, with self-diagnosis function to upload fault signals to PLC and industrial control system. 3. Working Principle The core adopts glass micro-fused silicon piezoresistive principle: The pressure of measured medium directly acts on the integrated stainless steel diaphragm to produce tiny elastic deformation. Silicon strain gauges fused on the diaphragm generate linear resistance changes corresponding to pressure. The Wheatstone bridge converts resistance changes into weak analog voltage signals. The internal ASIC chip completes temperature compensation, signal amplification and filtering, and outputs standard analog or digital signals to control equipment. 4. Application Scope Industrial Equipment Hydraulic equipment, injection molding machines, CNC machine tools, air compressors, boilers, hydraulic servo systems Application Industries Construction machinery, agricultural machinery, new energy hydraulic systems, industrial HVAC & refrigeration, water treatment, plastic melt pressure monitoring Application Scenarios Heavy-load hydraulic control, high-pressure pipeline monitoring, industrial IoT remote data collection, long-term continuous measurement in severe factory environments