22 having mounting flange 24 and bottom flange 26 retaining the sensor fixedly within the anti slosh cylindrical housing 22 housing 22 flange 24 and flange 26 are made of polypropylene flange 24 and flange 26 include holes not shown which allow liquids to enter and leave the space defined by the inner walls of housing 22 resistors r 1 r 9 are surface mount device resistors such resistors are well known in the art and may be made of ceramic metallic mixtures commonly referred to as cermet thick film resistors or other resistive materials suitable for exposure to the liquids which will contact the resistors a thick film resistive paste is deposited onto a ceramic substrate and heated to a temperature sufficient to reflow or melt the thick film paste laser trimming of the resistors r 1 r 9 is contemplated as a convenient process for achieving desired resistance values the resistors are situated film side down on insulator 17 and solder techniques are employed to attach the resistors to the conductive segments 18a 18z hot plates infrared ovens or soldering iron solder connection technology well known in the art are contemplated as techniques useful in attaching the resistors mechanically and electrically to the appropriate segments 18a 18z an.