The Orion 9172BNWP has an Ag/AgCl internal reference system. It is recommended for general purpose pH measurements and is ideal for dirty, difficult samples.
Product Detail
Teamed with the introduction of the Orion Star Series, Thermo Scientific has also introduced the new WP- waterproof and secure electrode connectors, a revolutionary feature of the new Orion Star Series Meters. The BNWP connector provides a waterproof and secure connection when used with the new Orion Star Series meters. The BNWP connector is compatible with any standard BNC connector both on Orion meters and competitive meter models.Glass Combination pH Electrode
Recommended Use: General purpose, ideal for dirty, difficult samples such as soils, sludges, colloids, viscous solutions. Easy to-clean-junction never clogs. Ideal for general lab use.