1.Product Introduction Dedicated MEMS pressure sensor for handheld, cordless and vertical vacuum cleaners. Detect internal negative pressure and air flow of the vacuum barrel, send signals to control board for suction adjustment and blockage alarm. 2.Working Principle Air pressure difference acts on internal MEMS silicon diaphragm, leading to Wheatstone bridge resistance change. Built-in circuit processes and converts pressure data into standard voltage signals for mainboard to judge dust clogging status. 3.Common Technical Parameters Pressure type: Gauge pressure (based on atmospheric pressure) Working medium: air (non-condensing) Working pressure: +/-60KPa Pressure output range: 1677722 (-60kPa) -15099494 (60kPa) Precision: ±1KPa Supply voltage: 3.3VDC(min1.8; Max3.6) Conversion time 3.91/7.81/15.625/250 ms Working current: 900μA Standby current consumption: 0.1μA Operating temperature: -20 to 65℃(without ice) 4.Product Structure MEMS pressure sensitive chip, signal compensation circuit, mini plastic shell, air guide hole, soldering wire terminals 5.Core Functions Real-time monitor vacuum negative pressure Detect filter and pipeline blockage Automatically adjust motor suction power Send blockage reminder alarm 6.Typical Fault Performance No blockage prompt when filter is clogged Weak suction without automatic power boost Unstable numerical fluctuation during cleaning No signal after startup 7.Application Scope Household cordless vacuum cleaners, vertical dust cleaners, handheld car vacuum cleaners, sweeping robot dust suction modules