Thermo Scientific™

Orion™ 8135BN ROSS™ Combination Flat Surface pH Electrode

Stable readings to 0.01 pH in less than 30 seconds. Get results three to five times more precise than those obtained with conventional electrodes with the Thermo Scientific™ Orion™ 8135BN ROSS™ Combination Flat Surface pH Electrode.


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The 8135BN ROSS Combination Flat Surface pH Electrode measures pH of soft, moist surfaces—both solid and semi-solid—such as agar gel plates, meats, bread dough and similar samples. With drift less than 0.002 pH per day and minimized restandardization, this electrode works in extreme cases of samples varying from one another by 50°C or more.
  • Material: Epoxy body
  • pH range: 0 to 14
  • Temperature range: 0° to 100°C
  • Internal reference: ROSS
  • Junction: Glass fiber
  • Dimensions: 120 × 12mm
  • pH precision: 0.01
  • Fill solution: Orion 810007
  • Cap diameter: 16mm
  • Small samples are available in micro sample dish
  • Flat surface tip

Includes: One 60 ml bottle of ROSS fill Solution, 810007 and spout cap

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

Disclaimer to internal research use restriction: Any restrictions on the purchaser to utilize the product(s) for internal research purposes only does not apply to the product(s) on the web pages associated with this statement.


Manuals & protocols