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Your cart is empty.An inexpensive alternative to expensive taut band (swing needle) me ohmmeters, the M500 provides fast and accurate measurements to verify the condition of insulation. Impact resistant. Soft carrying case included. Measurement/function - insulation resistance. Range - 0 to 1000 me ohms. Applications: Test motor winding insulation and diagnose heat damaged, deteriorating insulation in hermetic refrigeration compressors, appliances, panel boards, relay control circuits, motors.
wyatt boche
Reviewed in the United States on February 16, 2025
Works great for checking insulation of electric motors. I use it for refrigeration compressors.
Rodney E. Powell
Reviewed in the United States on August 4, 2024
Works as well as the commercial units within a lower range good for home AC units.
Stan
Reviewed in the United States on March 21, 2024
A small price to pay for the info this can provide in problematic situations. Intermittent or rare failures can be the most vexing to troubleshoot. This helps with that analysis, it will find faults that even a good multimeter and physical inspection will miss.
Hinds90
Reviewed in the United States on December 6, 2024
Would recommend!
Justin
Reviewed in the United States on November 27, 2024
I thought that I would use this a lot. I don’t use it a lot. I don’t use. It is bad if it’s your motor could put power to it don’t move is definitely bad or maybe you have a bad capacitor. If you have a meter and you know how to use it same thing it is a nice tool though
Howell
Reviewed in the United States on November 11, 2024
This tool saved our team a lot of time & it was accurate.
Macs R We
Reviewed in the United States on August 5, 2023
Needed to check for insulation degradation between my house and a distant outdoor subpanel. Easy to use, simple to interpret. Took off one star because... C batteries, really? I have a stockpile of batteries, but exactly two Cs in the entire house, had to raid the kid's camping lantern.
W. H. Suphan
Reviewed in the United States on January 12, 2023
My son, who is an air conditioning tech, wanted this for Christmas so I got it for him and he reported back to me that he wished he had one earlier because he used it to show customers the results on the meter and he sold two units that he might not have sold otherwise. He is very scrupulous to not try to sell customers new units unless they are needed and customers are wary of techs trying to sell them units before they are needed. He felt very secure in telling the customers that they would soon need a new unit based on the meter's readings. It served as an honest and effective sales tool which also saved the homeowners problems of a future breakdown. He profusely thanked me for this gift.
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