Test probe
（重定向自Differential probe）
![Typical passive oscilloscope probe being used for testing an integrated circuit.](/Images/godic/202501/09/ScopeProbe4108.JPG")
![A pair of simple test leads](/Images/godic/202501/09/Mastech_test_leads4108.JPG")
![A tweezer probe](/Images/godic/202501/09/Welleman-Tweezers_for_SMD-TLM124108.JPG")
![A passive oscilloscope probe with a switch in the probe handle that selects 1× or 10× attenuation](/Images/godic/202501/09/Test_probe4108.jpg")
A test probe (test lead, test prod, or scope probe) is a physical device used to connect electronic test equipment to a device under test (DUT). They range from very simple, robust devices to complex probes that are sophisticated, expensive, and fragile.