Memosens COS81E: Digital, optical oxygen sensor | Endress+Hauser,Terminal Blocks, 15 Circuits, 600V 50Amp #22-#8 AWG Copper, #12-#8 AWG Aluminum, UL/CSA, Screw Clamp Style | TBWE-15 | Killark,DER EE Electrical Instrument,Elmeasure | Energy and Power Monitors | DC Energy Meters,Inductance Capacitance Resistance Meter | DER EE