3300 NSv Probe, 1/4-28 UNF thread, without armor, -00: Unthreaded Length Option: 0.0 in (0.0 mm), -15: Overall Case Length Option: 1.5 in (38 mm), -05: Total Length Option: 0.5 metre (20 in), -02: Connector and Cable-Type Option: Miniature coaxial ClickLoc connector, standard cable, -00: Agency Approval Option: No option (No specific hazardous area certification)