Mini 820 Coreless Air Pump is a transparent mini air pump with a hollow cup motor designed for compact, precise air delivery. Key benefits and reasons to choose this pump: - Provides steady air flow in a compact form factor for tight device integration and space-constrained applications. - Low operating voltage and moderate current demands enable easy integration with small battery systems and microcontroller drives. - Lightweight and transparent housing simplifies installation checks and visual inspection during assembly. - The coreless hollow cup motor delivers reliable rotary performance while keeping overall size and weight minimal. Main features and performance: - Model is Mini 820 Coreless Air Pump (Model 820). - Operating voltage is DC 3.0 V to 3.7 V. - Typical working current is approximately 200 mA to 220 mA. - Motor outer dimensions are 8 mm x 20 mm. - Pump head dimensions are 22 mm x 14.4 mm x 8 mm. - Total pump height is 39 mm. - Air outlet diameter is 3.4 mm. - Net weight is 7.5 g. - Transparent pump housing with a hollow cup coreless motor for easy visual inspection and compact mounting. Compatibility and typical applications: - Suitable for integration into electronic blood pressure monitors and other medical devices that require compact air delivery components. - Well suited for laboratory and analytical instruments that need precise small-volume air movement. - Can be used in health and beauty devices and in smart home appliances where compact, silent air pumps are required. Practical use scenarios: - Replace or upgrade the air pump in a compact electronic blood pressure monitor to restore controlled inflation and deflation functionality. - Drive small pneumatic actuators or sample handling components inside portable analyzers or diagnostic modules. - Provide gentle air flow for beauty devices such as facial care systems or small air circulation modules in smart home gadgets. Package contents: - One Mini 820 Coreless Air Pump is included in the package.