Hantek HT311 Oscilloscope Accessories BNC to 4mm Adapter for Automotive Diagnostic Oscilloscope
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Great BNC accessory for the BangGood pocket Oscope. Works well for trouble shooting low voltage circuits allowing many modes of test lead inputs. Well worth the very reasonable price. If using with "pocket Oscopes" you will typically require the MCX to BNC adapter, #52553841, works great. Richard
I somewhat doubt this is a Hantek product. Can't find any indication of it. Also ordered the less expensive BNC Male to Dual Binding Posts Banana Connector Plug Test Adapter (https://www.banggood.com/BNC-Male-to-Dual-Binding-Posts-Banana-Connector-Plug-Test-Adapter-p-1166778.html) and it's exactly the same product - every little tiny detail is the same. Better get that one and save some money.