Quick start: This item uses a high-quality electronic valve to activate the diaphragm valve immediately, increasing work efficiency by more than 80%. Precise drip: minimum drip volume is 0.01 ml, drip interval is 0.1–9.9 s, and repeatability is about 0.5%. It includes a single-hole manual control switch for precise handheld operation. Semi-automatic design: Drip can be automatic from the machine or precisely controlled by the manual one-hole switch. For hands-free operation, set to automatic to achieve higher efficiency and quality. Stable voltage and safety: The circuit board uses a high-end full copper coil transformer to stabilize voltage changes, extend service life, and support high-frequency and high-intensity work. This enhances operational safety while remaining efficient and energy-saving. A high-precision air pressure gauge precisely controls the air pressure input to the air pump, and helps prevent damage to the air line.