40180-EU-EN-V2.4-4/12
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Introduction
Congratulations on your purchase of Extech’s Model 40180. This tone generator and amplifier probe
set is used to quickly trace and identify cables or wires within a group and also check the operation of
phone lines. With proper use and care, this meter will provide many years of reliable service.
Meter Description
1. Power switch
2. Modular connectors
3. Test leads
4. Battery compartment (rear)
5. Probe tip
6. Volume/Sensitivity control
7. Power button
8. Battery compartment (rear)
9. Headphone jack
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