1.Product Introduction High-precision mV output pressure sensor built with piezoresistive MEMS chip, no built-in ASIC amplification circuit. Directly outputs millivolt differential signal proportional to pressure, matched with external acquisition module and industrial control equipment. 2.Working Principle Pressure acts on silicon diaphragm, Wheatstone bridge resistance changes correspondingly. Under fixed excitation voltage, the bridge outputs linear mV differential signal varying with pressure for external circuit collection and calculation. 3.Common Technical Parameters Pressure type: Gauge pressure (based on atmospheric pressure) Working medium: air (non-condensing) Working pressure: -7~+7psi(-48.27~+48.27kPa); Excitation power supply: 1.5mADC Precision: ±2.5%FS/0~50℃ Bridge resistance: 4000 ~ 6000 ohms Response time: 1ms Offset voltage: +/-25mv Spirit sensitivity: 40-115mv Operating temperature: 5~85℃ 4.Product Structure MEMS piezoresistive sensitive chip, metal sealing housing, pressure inlet, wire lead terminals, internal insulation structure 5.Core Functions Linear millivolt signal output proportional to pressure High raw signal accuracy without signal attenuation Adapt to secondary amplification and acquisition modules Real-time pressure data collection for industrial equipment 6.Typical Fault Performance Unstable mV signal fluctuation Zero drift seriously beyond standard range No signal output after power on Signal nonlinear distortion under pressure loading 7.Application Scope Industrial hydraulic equipment, engineering machinery, test instruments, industrial automation detection systems