AC Detection: The built-in AC detector swiftly identifies alternating current in electrical systems, enhancing the safety and efficacy of your maintenance tasks. Heating Circulation Pump Testing: Easily assess the rotational performance of heating circulation pumps. This feature is crucial for maintaining an efficient and operational heating system. Comprehensive Functionality: This versatile tester is designed to check solenoid valves in oil burners, ensuring proper functionality and safety. It's an indispensable tool for heating system maintenance. and Reliable: Constructed with high-quality materials, this tester guarantees long-term durability and consistent performance, making it a valuable addition to any toolkit., Weight: 0.03747858454 Pounds, Manufacturer: Hipzeepo