Drumline Ltd is a UK-based company that specialises in the design and manufacture of Direct Replacement Conductivity Probes / Electrodes. Drumline has many years of experience designing and manufacturing conductivity probes (electrodes) for use in electronic boiler drum level monitoring equipment, feed water tanks, drain pots, and electronic level switches. Drumline Ltd manufactures 100% compatibility direct replacement electrodes for OEM system manufacturers, including Hydrastep (Delta Mobrey, Delta Mobrey (Hydrastep)), Cesare Bonetti, Clark Reliance, Fossil, Levelstate Systems (Hi-tech Systems India), Yarway, Narvik, BHEL, QUESTTEC Systems, IGEMA and RAC Energy.