Extech 40180 Tone Generator and Amplifier Probe Kit

Power: 9V battery (tone generator and probe (1 each))

Tone output: 1kHz, 6V square wave (approximately)

Dimensions Probe: x2.25x1(228x57x25.4mm)

Dimensions Generator: 2.5x2.5x1.5”(63.5x63.5x38.1mm)

Weight: 0.6lb (272gm)



  • Insulated inductive probe tip prevents shorting conductors
  • Tests include wire trace, continuity test, clear/busy/ringing line test and tip/ring identification
  • Alligator clips for non-terminated cables and modular connectors for direct connections to telephone and internet wiring
  • Selectable continuous or variable tone generation
  • Built-in speaker on probe with sensitivity control



  • Quality Engagement
  • Easy change and return
  • Delivery Avaliable
  • Favorable payment