Our Circulating Pump Rotation Tester is made of high-quality materials. The solenoid valve tester housing is made of plastic, making it to cracking and damage. The test disc is made of a magnet, making it sensitive and accurate. When the tester is placed in a magnetic field, you can see and feel the small disc inside the tester housing rotate. The disc indicates the direction of rotation, helping you determine whether the pump is operating. The Circulating Pump Rotation Tester and AC Detector is a professional diagnostic tool designed to indicate motor rotation on energized solenoid valves and motors, as well as certain types of pumps. This Circulating Pump Solenoid Valve Tester makes it easy to determine when the pump motor is energized. Otherwise, it may be difficult to hear or feel whether the motor is operating due to excessive background noise from other nearby equipment. The tester is essential for maintenance and troubleshooting, ensuring efficient operation of pumps and motors in various applications., Manufacturer: Akfldms