Can I clamp the Blue Sea 8110 meter around an entire extension cord or bundled pair of wires to measure current?
Blue Sea 8110 Mini Clamp-On Hand Held Multimeter
Handheld meters
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Open May 19, 2026 - 10:03 AM
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Staff Answer
May 19, 2026 - 10:03 AM
No. You must only clamp around a single conductor/cable at a time. If you clamp around a positive and negative wire together (or hot and neutral together), the opposing magnetic fields will cancel each other out, and the meter will register a zero or inaccurate reading
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