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Why does this outlet tester need batteries? Isn’t it a plug-in only device?
Built-in battery allows the outlet tester to keep displaying readings even after being unplugged, so you won’t lose your test data. It also features memory function, which retains the last test status when powered on next time.
Does this tester keep showing readings after unplugging from wall outlet?
Yes. Built-in battery supports screen display after unplugging, so you can record data conveniently. It also comes with memory function to save your last test status for next power-on.
What electrical issues can this outlet tester detect?
It identifies common wiring problems including open neutral, open ground, reversed hot-neutral, reversed hot-ground and other mis-wiring conditions. Digital screen displays voltage and frequency for quick reading.
Can it test GFCI ground-fault circuits?
Sure. Press the TEST button to trigger GFCI test (>5mA), verify whether your GFCI outlet trips normally. LED indicator lights show correct / fault status at a glance.
What is the purpose of the memory function?
Memory function stores your last test result. You don’t need to retest when powering on again, great for checking multiple outlets one after another.
Why does this outlet tester need batteries? Isn’t it a plug-in only device?
Built-in battery allows the outlet tester to keep displaying readings even after being unplugged, so you won’t lose your test data. It also features memory function, which retains the last test status when powered on next time.
Does this tester keep showing readings after unplugging from wall outlet?
Yes. Built-in battery supports screen display after unplugging, so you can record data conveniently. It also comes with memory function to save your last test status for next power-on.
What electrical issues can this outlet tester detect?
It identifies common wiring problems including open neutral, open ground, reversed hot-neutral, reversed hot-ground and other mis-wiring conditions. Digital screen displays voltage and frequency for quick reading.
Can it test GFCI ground-fault circuits?
Sure. Press the TEST button to trigger GFCI test (>5mA), verify whether your GFCI outlet trips normally. LED indicator lights show correct / fault status at a glance.
What is the purpose of the memory function?
Memory function stores your last test result. You don’t need to retest when powering on again, great for checking multiple outlets one after another.