Precise micro-volume dispensing: The integrated 8 mm stepper motor (two-phase, four-wire) enables controlled delivery at micro-volume levels down to 0.5 ml, making the pump suitable for any task that requires careful, repeatable fluid transfer. Compact, durable design: Constructed from metal and measuring just 15.7 x 8 mm, the pump fits into tight assemblies without sacrificing performance or longevity. Easy electrical integration: Operates on a 3–5 V supply, providing flexibility for use with microcontrollers, single-board computers, and a wide range of electronic systems. Reliable self-priming: Built-in self-absorbency reduces setup time and helps maintain consistent flow when starting or restarting the system. Ready to use: Each unit is individually packaged so you receive a single peristaltic pump ready for immediate installation and testing. Key specifications at a glance Motor: 8 mm stepper motor, two-phase, four-wire Minimum controllable volume: 0.5 ml (micro-volume range) Material: Metal Size: 15.7 x 8 mm Voltage: 3–5 V Packaging: Individually packaged unit Typical applications Laboratory and research benches for precise reagent dosing and small-volume sampling. Prototyping and electronics projects that require compact, reliable fluid transfer with stepper motor control. Small-scale dosing tasks such as ink or reagent delivery in analytical equipment where space and accuracy matter. What this pump solves Eliminates bulky components in space-constrained designs by offering a metal-bodied pump in a very small footprint. Provides repeatable micro-volume dosing for experiments and devices that need fine control. Simplifies integration with low-voltage control electronics and reduces priming effort through self-absorbency. Includes one individually packaged peristaltic pump unit, ready for installation.