{"product_id":"mini-dc-micro-vacuum-air-pump-650ml-min-gas-sampling-pump","title":"Mini DC 2-5V Micro Vacuum Air Pump 650ml\/min Gas Sampling","description":"\n\u003ch2\u003eHELTC Mini DC Micro Vacuum Air Pump — Compact Gas Sampling \u0026amp; Detection\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eHELTC Mini Vacuum Pump\u003c\/strong\u003e is a precision-engineered micro air pump designed for gas detection, air sampling, laboratory instrumentation, DIY electronics projects, and other low-pressure pneumatic applications. Operating on just \u003cstrong\u003eDC 2–5V at 85mA\u003c\/strong\u003e, this ultra-compact gear pump delivers a consistent \u003cstrong\u003e650 ml\/min flow rate\u003c\/strong\u003e and a vacuum degree of \u003cstrong\u003e-400 mbar\u003c\/strong\u003e — making it an excellent choice for hobbyists, engineers, and makers who need reliable low-pressure performance in a tiny footprint.\u003c\/p\u003e\n\n\u003cp\u003eIts all-metal construction ensures durability and longevity even in demanding environments. The pump's miniature size (3.5 × 2.5 × 4 cm) allows it to integrate seamlessly into tight enclosures, custom PCB builds, Arduino\/Raspberry Pi projects, or portable gas analysis instruments.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide voltage range:\u003c\/strong\u003e DC 2–5V — compatible with USB power, microcontrollers, and battery packs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow current draw:\u003c\/strong\u003e 85mA — ideal for battery-powered or energy-sensitive designs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlow rate:\u003c\/strong\u003e 650 ml\/min for efficient air and gas movement\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVacuum degree:\u003c\/strong\u003e -400 mbar — suitable for low-pressure sampling and detection tasks\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGear pump structure:\u003c\/strong\u003e smooth, consistent flow with minimal pulsation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMetal body:\u003c\/strong\u003e robust and resistant to wear\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact form factor:\u003c\/strong\u003e 3.5 × 2.5 × 4 cm (approx. 1.37 × 0.98 × 1.57 in)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eDC 2–5V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCurrent Draw\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e85 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eFlow Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e650 ml\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eVacuum Degree\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e-400 mbar\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003ePump Structure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eGear Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e3.5 × 2.5 × 4 cm \/ 1.37 × 0.98 × 1.57 in\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px; border:1px solid #ddd;\"\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eGas detection and air quality sampling instruments\u003c\/li\u003e\n  \u003cli\u003eArduino, Raspberry Pi, and DIY maker electronics projects\u003c\/li\u003e\n  \u003cli\u003ePortable laboratory and analytical equipment\u003c\/li\u003e\n  \u003cli\u003eSmall pneumatic control systems\u003c\/li\u003e\n  \u003cli\u003eAquarium and hydroponic air circulation systems\u003c\/li\u003e\n  \u003cli\u003eCustom robotics and automation builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Mini DC Micro Vacuum Air Pump\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlease Note:\u003c\/strong\u003e Product images are for reference only; actual size and color may vary slightly due to manual measurement tolerances (±5–10 mm) and monitor display differences.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-percent-better-every-day-motivational-canvas-wall-poster-inspirational-quote\"\u003e\"1% Better Every Day\" Motivational Canvas Poster | Wall Art\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/best-seat-in-the-house-retro-quote-canvas-wall-art-print\"\u003e\"Best Seat In The House\" Retro Quote Canvas Wall Art Print\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor guidance on safe handling and use of small electrical components in DIY and maker projects, visit the U.S. Consumer Product Safety Commission (CPSC) for consumer safety resources.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What voltage should I use to power this mini vacuum pump?\u003c\/h4\u003e\n\u003cp\u003eA: This micro air pump operates on DC 2–5V, making it compatible with standard USB power supplies (5V), microcontroller boards like Arduino and Raspberry Pi, and 2–4 AA battery packs. Always stay within the 2–5V range to avoid damage to the pump motor.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What types of applications is this mini vacuum pump best suited for?\u003c\/h4\u003e\n\u003cp\u003eA: The HELTC mini vacuum pump is ideal for gas detection and air sampling instruments, DIY electronics and maker projects, small pneumatic automation systems, laboratory equipment prototypes, and aquarium or hydroponic air circulation. Its compact gear pump design provides a smooth, consistent 650 ml\/min airflow with a -400 mbar vacuum degree.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this pump suitable for liquid transfer?\u003c\/h4\u003e\n\u003cp\u003eA: This pump is designed primarily for air and gas applications. It is not recommended for liquid transfer unless specifically verified for the fluid type. For gas detection, sampling, and dry air movement tasks, it performs reliably within its rated specifications.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What are the physical dimensions of this micro air pump?\u003c\/h4\u003e\n\u003cp\u003eA: The pump measures approximately 3.5 × 2.5 × 4 cm (1.37 × 0.98 × 1.57 inches), making it one of the most compact DC vacuum pumps available for embedded and portable applications. Please allow ±5–10 mm tolerance due to manual measurement.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What voltage should I use to power this mini vacuum pump?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This micro air pump operates on DC 2–5V, making it compatible with standard USB power supplies (5V), microcontroller boards like Arduino and Raspberry Pi, and 2–4 AA battery packs. 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