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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4
5
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