Circulation Pump Rotation Tester, Solenoid Valve and AC Detector Rotation tester & AC detector for circulating pumps This Device Quickly Indicates Circulation Pump Rotation Direction It Can Also Be Used To Detect The Magnetic Field Produced By AC (Solenoid Valve & Transformer AC Indicator) No plumber or heating contractor should be without one of these on their key-ring. with it you can quickly check pump operation & rotation direction.
Fruugo United Kingdom