• ROSS pH Electrode

ROSS pH Electrode

  • pH Range: 0 to 14
  • Material Rugged: Epoxy body
  • Connector Types: Waterproof BNC

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Ideal for measurement in thick or viscous samples, but compatible with all sample types

The Thermo Scientific Orion 8165BNWP ROSS Sure-Flow pH Electrode with waterproof connector provides a clog-resistant, easy-to-clean sleeve junction.

The Orion ROSS Sure-Flow pH Electrode provides field pH measurement where stability and high performance is desired (on-site pH soil). With a waterproof BNC connector, the pH electrode is made of a rugged epoxy body that resistants strong acids and bases.

The unique free-flowing junction cleans easily between measurements; press down on the cap to allow filling solution to flow through the junction and carry away any contaminants that may interfere with measurement. This clog-free feature offers the longest use life. A sleeve protects the pH sensing bulb and removes for easy cleaning. 

ROSS pH Electrode Benefits

  • Improved measurements
  • Compatiblity with any brand of meter
  • TRIS compatible for use with most samples, including proteins and sulfides
  • Mercury and silver free to prevent sample contamination


  • Detachable bulb guard
  • Two 60mL bottles of fill solution (810007)
  • 1m Cable


Used intermittently in some organics


12 months from date of purchase by Buyer or 18 months from date of shipment from Seller, whichever is earlier.

All Thermo Orion electrodes are available on request

Description With waterproof connector
pH Range 0 to 14
Precision 0.01
Operating Temperature  0° to 100°C
Material Rugged Epoxy body
Junction Sure-Flow
Filling Solution Type 3M KCl
Cable Length 1m
39 in.
Connector Types Waterproof BNC
Cap Diameter 16mm
Internal Reference ROSS
Operating Temperature 32° to 212°F
Includes Detachable bulb guard, 2 x 60mL bottles of fill solution
Type Combination pH Electrode, epoxy body, BNC waterproof connector
For Use With Standard pH Meter, BNC connector