Product Name: 3V/6V Small Size Vacuum Air Pump Model NO.: DQB031-FB2 Working Conditions: Dry Work Function: Mainsuction Pump Vacuum Degree: High Vacuum Exhauster Method: Kinetic Vacuum Pump Structure: Diaphragm Pump Oil or Not: Oil Free Flow Rate: 0.8-1.6L/Min Pressure: 320-500mmhg Negative&#160;Pressure: -280mmhg Voltage: DC3.0V/6.0V/9.0V Net Weight: 17g Certificate: Ce,RoHS,ISO,Reach Trademark: DYX Transport Package: Carton Package Specification: net weight: 17g Origin: Shenzhen, Guangdong, China HS Code: 8414809090 Product Description 3v/6v small size vacuum air pumpProduct Fearture:SpecificationForApprovalRatedVoltageDC3.0VDC6.0VDC9.0VRatedCurrent<500MA<280MA<180MAAirFlowWithoutLoad 0.8-1.6LPMPressure320-500mmHgNegativePressure<- 280mmHgLeakage<3mmHg/min(in a 100cc tank, from 0 to 280+/-10mmHg, then stop for 30 secs)LifeTest>30,000cycle(in 100cctank,workfor 10 secsandstopfor 5 secasacycle)ApplyAIREnvironment5ºC~55ºCProductnetweight17gPackingwayinnerpackage30PCS/plate49g250*330*30mmouterpackage300PCS/box335g355*275*190mmNoiseLevel <65dBGeneralMainly for beauty care, personal medical care , and household appliances, and other products. Product Photo: Productdimensions: