Which is not a tool that geographers use?

You're apparently looking at a list of choices and not sharing it.

So I can't tell you which item on the list is the correct choice.

All I can do is mention a few tools that I know are not of primary

importance to geographers, although they might be used for isolated

applications in that field:

• microwave frequency counter
• through-line wattmeter
• spectroscope
• locking pliers
• transmission impairment measuring set (TIMS)
• pipe wrench
• clamp-on AC ammeter
• Schmidt-Cassegrain reflecting telescope
• torque wrench
• high power soldering iron
• dual-trace oscilloscope
• hammer drill
• audio distortion meter
• 2.5 GHz field-strength meter
• particle accelerator