Description: 【Versatile Testing Capabilities】: This Solenoid Tester functions as both a circulation pump speed tester and A Ac field detector, providing comprehensive testing solutions for various applications 【Directional Rotation Indicator】: Equipped with a Rotation Indicator, this Rotation Tester allows users to easily determine the direction of rotation, enhancing accuracy in diagnostics 【Compact Design】: With a compact size of 5 cmx1.7 cm/1.97 inchx0.67 inch, this tester is easy to carry and store, ensuring convenience during fieldwork or in your toolbox 【Sturdy Construction】: Made from quality ABS PP, this tester is built to withstand regular use while maintaining its reliability and performance over time 【Complete Package】: The package includes 1 Heating Circulation Pump Rotation Tester, ready for immediate use Specification: Material: ABS PP Size Chart: 5 cmx1.7 cm/1.97 inchx0.67 inch Package Includes: 1 Rotation Tester Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.