The Barnant PD1R1 general purpose glass electrode with differential pH sensor has a range of -2.0 to 14.0 pH, and a convertible mounting. It comes with a 4.5m analog cable.
Thermo Fisher Scientific manufactures analytical instruments, laboratory equipment, consumables, and software under the Thermo Scientific, Fisher Scientific, Barnstead, and Nalgene brands, among others. The company is headquartered in Waltham, MA.