Your cart is empty.
Your cart is empty.This very useful device quickly indicates rotation direction. It can also be used to detect the magnetic field produced by AC. The red and white disc spins on its axle when the tester is placed close to a sufficiently strong AC field. When placed close to a pump that is turning the disc will also rotate. No plumber or heating contractor should be without this very handy keyring tool.
Daniel
Reviewed in the United States on March 2, 2025
A refrigeration tech - magnet does what it should- legit - asset operational - leaving call open to check ops later .
Joe J Castro
Reviewed in the United States on February 28, 2025
It's hard for me to finds these Amazon came through great tool for my line of work
Pedro L.
Reviewed in the United States on January 16, 2025
Absolutely awful. Purchased 2 and both of them didn't work. Pure garbage. Don't waste your money.
Ziv r.
Reviewed in the United States on August 29, 2024
simple and effective.
SDR
Reviewed in the United States on November 24, 2024
The media could not be loaded.
Andrew D. Rodney
Reviewed in the United States on January 20, 2024
I tried this on two Grundfos pumps, and it worked on both, indicating the pump was running. Otherwise, it is difficult to know or not as at least my pumps are very quiet, and it isn't a sure thing the pump is running otherwise. Some state the product doesn't work; I can't report that. For $20, I'm very happy with the product.
Shannon Stepp
Reviewed in the United States on November 13, 2019
Shows pump rotation but not any indication of electric power. Quite disappointed with operation and high price from Amazon. Better pricing elsewhere.
SJK
Reviewed in the United States on March 5, 2017
This is a handy little tool for indicating electrically energized solenoids and motors as well as motor rotation on some types of pumps. It's made in Sweden by Geonordic and seems to work fine for indicating rotation with Grundfos brand circulator pumps, but not so much with the Taco 007 Series circulators pumps. I don't know if it because the magnetic field from the Taco motor is just too weak or if it is interference from the amount of cast iron in the pump motor housing and flange. With larger multi pump installations like you have in commercial boiler rooms, this little tool makes it easy to tell when the pump motor is energized when there is otherwise either too much background noise or vibration from other nearby equipment to hear or feel if the motor is running. It also works for determining the rotation of small shaded pole motors used in things like bathroom ventilator fans. You can see and feel the little red and white disc rotate inside the testers housing when it is placed in a magnetic field. It was a little expensive for such a small tool and it may not always sense the magnetic field from every small motor, but it is still a useful thing to have on your key chain.
Recommended Products
$1,045.00
$ 99 .00 $99.00