[CRUCIAL FOR HEATING SEASON] The circulation pump rotation tester is an essential tool for inspections at the beginning of heating season, enabling users to verify circulation pump functionality and detect blockages after long periods of inactivity. [MULTIFUNCTIONAL TESTING CAPABILITIES] In addition to checking circulation pumps, this device also assesses oil burner solenoid valves, providing versatility for various heating applications in your maintenance toolkit. [ PERFORMANCE ] The integrated indicator displays both the magnetic field and rotation direction of most circulation pumps clearly, facilitating immediate diagnosis of pump performance issues. [INTUITIVE USER EXPERIENCE] With red and white screws that rotate with the pump, this user-friendly design allows anyone to easily confirm the pump's rotation direction without confusion. [EASY TO CARRY] This compact tester is lightweight enough to hang on a keychain, making it a must-have tool for plumbers or heating contractors who require quick access to check pump operations.