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RedGrittyBrick
RedGrittyBrick
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You can measure voltage and frequency with either a good-quality multimeter (e.g. a second-hand Fluke 77 on eBay

or a plug-in "Kill-a-Watt" type of meter.

Cheap $5-$50 new no-name Chinese-made multimeters are usually not really safe for use on 230V

Personally, I doubt a 10% difference in voltage will be critical for any of those devices apart from the Japanese 100V items, that could overheat. n.b. EU supply = 230V+/-10% US supply=120V+/-5% so running a nominal 100V device at 126V might be cause for concern.

Japan has a mix of 50HZ and 60Hz supplies so I'd expect Japanese made 100V appliances to be happy with either.

You can measure voltage and frequency with either a good-quality multimeter (e.g. a second-hand Fluke 77 on eBay

or a plug-in "Kill-a-Watt" type of meter.

Cheap $5-$50 new no-name Chinese-made multimeters are usually not really safe for use on 230V

Personally, I doubt a 10% difference in voltage will be critical for any of those devices apart from the Japanese 100V items, that could overheat. n.b. EU supply = 230V+/-10% US supply=120V+/-5% so running a nominal 100V device at 126V might be cause for concern.

You can measure voltage and frequency with either a good-quality multimeter (e.g. a second-hand Fluke 77 on eBay

or a plug-in "Kill-a-Watt" type of meter.

Cheap $5-$50 new no-name Chinese-made multimeters are usually not really safe for use on 230V

Personally, I doubt a 10% difference in voltage will be critical for any of those devices apart from the Japanese 100V items, that could overheat. n.b. EU supply = 230V+/-10% US supply=120V+/-5% so running a nominal 100V device at 126V might be cause for concern.

Japan has a mix of 50HZ and 60Hz supplies so I'd expect Japanese made 100V appliances to be happy with either.

Source Link
RedGrittyBrick
RedGrittyBrick
  • 24.6k
  • 12
  • 49
  • 93

You can measure voltage and frequency with either a good-quality multimeter (e.g. a second-hand Fluke 77 on eBay

or a plug-in "Kill-a-Watt" type of meter.

Cheap $5-$50 new no-name Chinese-made multimeters are usually not really safe for use on 230V

Personally, I doubt a 10% difference in voltage will be critical for any of those devices apart from the Japanese 100V items, that could overheat. n.b. EU supply = 230V+/-10% US supply=120V+/-5% so running a nominal 100V device at 126V might be cause for concern.