Description: OOTDTY -Micro-pump is powered miniature for DC motor internal mechanical eccentric motion, pushed via way of an eccentric movement contained in the diaphragm reciprocates. -Whereby the chamber fixed quantity of air compression (compression suction port is closed, the exhaust port is formed to open barely tremendous pressure), stretching (compressed exhaust port is closed, a dangerous pressure sucking mouth open), the pumping air intakes with the exterior atmospheric pressure difference, at a stress difference, the gas pressure (suction) into the chamber, and discharged from the exhaust port. -Micro-pump is particularly used for medicine, gasoline analysis instrumentation and other fields. -Completely maintenance-free, and no oil do not pollute the transmission -Small, stable and reliable, handheld device for pump-priming, low noise, low energy consumption. Especially compatible for top unfavorable environmental requirements. Specification: Brand new Type: DC12V Mini Vacuum Operating DC9V ~ 14V Rated for DC 12V Positive pressure: 8000mmHG Negative pressure:-500mmHG Rated Current: 350mA Rated Power: 20W Suction capacity: 8L / min Inlet diameter:6mm Outlet diameter: 6mm Vacuum degree: 66kpa Maximum pressure: 120kpa Noise:<60db Size: as photograph displays Color: as photograph shows Package include: 1 Micro Vacuum