<p>Features and Functions:<br>1. Single-stage design: These vacuum pumps are designed with a single stage and are suitable for creating medium vacuum environments.<br>2. Portability: Most models are equipped with a handle for easy carrying and movement.<br>3. Electric drive: These vacuum pumps are usually driven by an electric motor and need to be connected to a power source for use.<br>4. Pressure gauge: Some models are equipped with a pressure gauge to monitor the vacuum level in real time.<br>Flow and vacuum: Different models of vacuum pumps have different flow (CFM) and ultimate vacuum (Pa or mmHg) parameters for different application requirements.<br>5. Durability: Made of strong and durable materials such as brass or stainless steel, it is suitable for long-term continuous work.<br>6. Safety features: Safety features are taken into consideration when designing, such as overheat protection, overload protection, etc.</p>