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Answer:
A GFCI device will trip at 5mA when it detects voltage between the hot and ground wire or leaked voltage. 5mA is enough to stop the human heart. GFCI breakers are usually more sensitive than A standalone GFCI device.
william s. fuller
· March 13, 2021
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Answer:
When using the AFCI function, this device works by creating a (controlled) arc fault to verify that the upstream AFCI device correctly detects it and interrupts the circuit. Arc faults can damage other devices in the circuit, especially sensitive electronics, so it is a good idea to remove them from the circuit before … see more When using the AFCI function, this device works by creating a (controlled) arc fault to verify that the upstream AFCI device correctly detects it and interrupts the circuit. Arc faults can damage other devices in the circuit, especially sensitive electronics, so it is a good idea to remove them from the circuit before introducing the arc fault. see less When using the AFCI function, this device works by creating a (controlled) arc fault to verify that the upstream AFCI device correctly detects it and interrupts the circuit. Arc faults can damage other devices in the circuit, especially sensitive electronics, so it is a good idea to remove them from the circuit before introducing the arc fault.
yaauie
· November 8, 2020
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Answer:
Only the top side. Not sure why you would need it on both sides (I use it every day at my job)
Matthew…
· August 14, 2016
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Answer:
all outlets with ground
Testers and Tools, LLC
Seller · April 16, 2016
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Answer:
No
Amazon Customer
· September 4, 2020
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Answer:
No.
Russ Meehan
· January 16, 2021
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Answer:
The middle light only
J. Tozier
· September 3, 2019
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Answer:
Way late on answer this.
If you’re talking about (Klein Tools RT210 Outlet Tester) then no, it has to have power on the circuit as this is not battery powered to show the tester how it’s wired.

K-PathIX
· April 18, 2021
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Answer:
If you have a US standard power strip, yes the tool will fit into your outlet. You should not leave it in. It seems to me that if there is something wrong with your power strip (wires in other places than typical) it needs replacement rather than opening up a whole can of worms.
As an aside, it probably isn't good to… see more
If you have a US standard power strip, yes the tool will fit into your outlet. You should not leave it in. It seems to me that if there is something wrong with your power strip (wires in other places than typical) it needs replacement rather than opening up a whole can of worms.
As an aside, it probably isn't good to keep the power strip in a contained area. IMHO see less
If you have a US standard power strip, yes the tool will fit into your outlet. You should not leave it in. It seems to me that if there is something wrong with your power strip (wires in other places than typical) it needs replacement rather than opening up a whole can of worms.
As an aside, it probably isn't good to keep the power strip in a contained area. IMHO

jerryc
· May 28, 2021