Apera Instruments AI3107 LabSen 371 Professional Combination Flat pH Electrode for Surface Test, BNC Connector, POM

Backed by proprietary Swiss pH sensor technology and materials, the LabSen 371 Combination pH Electrode is designed for flat surface pH testing such as skin, paper, leather, cloth, etc. Special Glass Membrane – The LabSen 371 pH electrode adopts a flat glass membrane, making surface pH testing easier and more accurate. Long-Life Reference System – composed of a glass tube, AgCl and a reference silver wire. The top end of the slim glass tube is stuffed with cotton, which prevents the reaction between AgCl and electrolyte when temperature changes. It improves the stability of reference electrode and prolong the service life of the electrode. PTFE Junction – A type of Teflon material with multiple pores, hard to be contaminated. Material: POM; Temp. Sensor: No; Junction: PTFE; Reference: Long-Life; Electrolyte: 3M KCL; Length: 110mm; Diameter: 12mm; Membrane Shape: Flat; Range: 0-14 pH; Temp. Range: 0 to 80˚C; Connector: BNC; Cable: 3 Ft The electrode uses a BNC connector, compatible with any pH meters that use BNC connectors. Temperature sensor is not built-in. Users need to have a separate temperature probe (ex: Apera MP500) to enable ATC or manually input temperature to realize temperature compensation. The electrode is backed up with a 6-month warranty by Apera Instruments.