Features: Rugged, polycarbonate construction Glass pH sensing bulb surrounded by protective teeth 0 to 14pH range 0 to 80°C operating temperature Includes 39" (1m) cable with BNC connector and storage solution bottle Specifications: Description: General-purpose combination pH electrode with sealed gelled reference filling solution and detachable bulb guard Dimensions: 12.5 x 155 mm Construction material Polymer housing, glass bulb Measuring range: 0 to 14.0 pH units Temp. range: 0-80°C Reference junction: Ceramic Reference type: Ag/AgCl (silver silver chloride) Isopotential point: ~7.0 pH Precision: 0.02 pH units Connector: BNC Cable length: 1 meter (39”) Storage container: Bottle The Extech 601500 is an Electrode pH BNC Combination. This standard pH electrode includes a long 39 in. (1m) cable for hassle free use, BNC connector and storage solution bottle. Product has a 6 month warranty.