Omron PS Electrode holder with 5 number of electrodes 100 mohm features 100 mohm's insulation resistance and is made of polybutylene terephthalate for durability Separate electrode holders that allow the electrodes to be withdrawn easily for inspection. Brand Name|Omron#MFR Part Number|PS5S#UNSPSC|39122200#Item|Electrode Holder#Number of Electrodes|5#Material|PolyButylene Terephthalate#Insulation Resistance|100 mOhm#Operating Temperature|-10 to 70 deg C#Application|For supply and drainage of tap water in buildings