Thermo Scientific Orion products include pH, ISE, conductivity and dissolved oxygen meters, electrodes and solutions as well as colorimetry equipment and online process monitors. To download one of our product user guides or instruction sheets, please select one of the links below.

For assistance with any of the Thermo Scientific Orion products, contact our Technical Support Specialists. Within the United States call 1-800-225-1480 and outside the United States call 978-232-6000 or fax 978-232-6031. In Europe, the Middle East and Africa, contact your local authorized dealer. For the most current contact information, visit www.thermo.com/contactwater.  For the latest application and technical resources for Thermo Scientific Orion products, visit www.thermo.com/waterapps.   

• Thermo Scientific Orion Meter and Instrument User Guides and Instruction Sheets 
• Thermo Scientific Orion pH, ORP and Speciality Electrode User Guides and Instruction Sheets 
• Thermo Scientific Orion ISE (Ion Selective Electrode) User Guides and Instruction Sheets 
• Thermo Scientific Orion Conductivity Cell & Dissolved Oxygen Probe User Guides and Instruction Sheets 
• Thermo Scientific Orion Colorimetry User Guides and Instruction Sheets 
• Guia del Usuario y Guias de Inicio Rapido en espanol de Thermo Scientific Orion -  Spanish 
• Thermo Scientific Orion Bedienungsanleitung und Schnell- Start- Anleitung in Deutsch - German
• Thermo Scientific Orion guides d’utilisation et guides de démarrage en français  - French
• Guida utente Thermo Scientific Orion e Guida di avviamento veloce, in italiano - Italian