Abstract: A paraffin monitor apparatus responsive to changes in resistance includes a plurality of paraffin sensing means which are placed in a liquid medium containing paraffin. The paraffin sensing means are housed in a non-metallic, hard material having a plurality of channels so that each paraffin sensing means has at least one surface substantially in conformity to a surface of the non-metallic, hard material. A predetermined length of tubing is affixed to the non-metallic, hard material, and a plurality of wires, each of which passes through a channel of the non-metallic, hard material and the tubing, connect with corresponding paraffin sensing means. An adapter affixed to the tubing permits insertion of the non-metallic, hard material and a portion of the tubing into a pipeline containing a flowing liquid medium having paraffin.