Rotation Tester and AC Detector for Circulating Pumps etc
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.
Rotation Tester and AC Detector for Circulating Pumps Etc
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.
Rotation Tester and AC Detector for Circulating Pumps Etc
Quickly indicates rotation direction. Detects AC fields.
Rotation Tester and AC Detector for Circulating Pumps Etc
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.