It requires NO batteries as it draws power from the power source to function. Tests wiring conditions and inspects GFCI devices at electrical outlets. Manufacturer: Klein Tools.
Klein ET910 USB Power Meter and Tester, USB-A Digital Meter for Voltage, Current
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Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage...
Klein Tools 69149P Multimeter Test Kit, Klein Digital Multimeter, Voltage Tester
Vintage Klein Tools Lineman Pliers 8.5" Long "Klein Koat" No 89 Made USA Used
Klein Tools 55473RTB Tool Box, Rolling Tool Bag on Wheels with High Clearance
