HAMEG-HO801-4-BNC-sockets-for-HM8001-25-Hameg-HO801-P-These-four-factory-fitted-BNC-connectors-on-the-rear-panel-are-for-the-HM8001-2-There-is-no-field-retrofit-kit-available-BR-These-four-BNC-connectors-on-the-rear-panel-of-provide-for-signal-transmission-to-or-from-HM8021-4-&-HM8030-6-modules-P-P-HAMEG-Instruments-are-well-known-for-oscilloscopes-&-test-equipment-for-more-than-50-years-P-Hameg-HO801-4-BNC-sockets