Mini DC 2-5V Micro Vacuum Air Pump 650ml/min Gas Sampling

HELTC Mini DC Micro Vacuum Air Pump — Compact Gas Sampling & Detection

The HELTC Mini Vacuum Pump 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 DC 2–5V at 85mA, this ultra-compact gear pump delivers a consistent 650 ml/min flow rate and a vacuum degree of -400 mbar — making it an excellent choice for hobbyists, engineers, and makers who need reliable low-pressure performance in a tiny footprint.

Its 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.

Key Features

• Wide voltage range: DC 2–5V — compatible with USB power, microcontrollers, and battery packs
• Low current draw: 85mA — ideal for battery-powered or energy-sensitive designs
• Flow rate: 650 ml/min for efficient air and gas movement
• Vacuum degree: -400 mbar — suitable for low-pressure sampling and detection tasks
• Gear pump structure: smooth, consistent flow with minimal pulsation
• Metal body: robust and resistant to wear
• Compact form factor: 3.5 × 2.5 × 4 cm (approx. 1.37 × 0.98 × 1.57 in)
• Color: Black

Specifications

Common Applications

• Gas detection and air quality sampling instruments
• Arduino, Raspberry Pi, and DIY maker electronics projects
• Portable laboratory and analytical equipment
• Small pneumatic control systems
• Aquarium and hydroponic air circulation systems
• Custom robotics and automation builds

Package Includes

• 1 × Mini DC Micro Vacuum Air Pump

Please Note: 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.

Related Products You May Like

• "1% Better Every Day" Motivational Canvas Poster | Wall Art
• "Best Seat In The House" Retro Quote Canvas Wall Art Print

For 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.

Frequently Asked Questions

Q: What voltage should I use to power this mini vacuum pump?

A: 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.

Q: What types of applications is this mini vacuum pump best suited for?

A: 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.

Q: Is this pump suitable for liquid transfer?

A: 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.

Q: What are the physical dimensions of this micro air pump?

A: 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.