Thermo Scientific Orion Star Meters

Orion 3-Star pH

Orion 4-Star pH/Cond

Orion 5-Star Multimeter

Thermo Scientific Orion Star Series
Portable Meters

The Orion Star series offers a diverse line of newly designed single and multi-parameter instruments for a wide variety of applications. They incorporate features that will enhance your water quality monitoring and analysis programs.

• Durable and balanced with backlit display for easy handling in the most demanding field applications
• Battery power delivers over 2,000 hours of
  continuous operation
• Full compliment of GLP-related features including 21 CFR Part 11 software
• SMART STABILITY™ and SMART AVERAGING™
  functions for automatically optimized accuracy, precision and response time
• Storage of up to 10 password protected methods
  for easy retrieval of operation procedures
• Ergonomic design for comfortable handling

Orion 3-Star Portable Meters
Single Parameter Instruments

Orion 4-Star Portable Meters
Dual Parameter Instruments

Orion 5-Star Portable Multimeter
Multi-Parameter Instrument

Call 1-800-833-7958

Thermo Electron Orion Star Specifications
Orion Star Series Meter User Guide

Orion 3-Star RDO®

Orion 4-Star RDO®

Orion 5-Star RDO®

Thermo Scientific Orion Star RDO® Optical Dissolved Oxygen Meters

Introducing the new Thermo Scientific Orion Star RDO meter and probe for maintenance-free optical dissolved oxygen measurements. The rugged probe utilizes luminescence technology for the most convenient and accurate measurements. There is no longer any need for warm-up time, membranes, solutions or stirring; this new technology offers the highest accuracy and convenience. RDO technology meets the requirements of ASTM D888 - 05 Method C – measuring dissolved oxygen with a luminescence-based sensor.

• Dissolved oxygen level measurements using optical/luminescence-based dissolved oxygen (LDO) technology
• No membranes to change – once-a-year cap replacement
• Not affected by color, turbidity or sulfides
• RDO probes include calibration sleeve and stainless steel probe guard for use anywhere
• Calibrate for dissolved oxygen using water-saturated air, air-saturated water, zero point, or at a custompoint with Winkler titration
• Temperature calibration capability
• Built-in barometer for automatic pressure correction with option formanual correction of dissolved oxygen readings
• RS232 port for easy data downloading and software updates
• IP67-rated housing
• Four AA batteries to provide over 1000 hours of operation in AUTO-READ™mode
• 3-year warranty on meter and RDO probe body
• 1-year warranty on RDO optical/luminescence-based cap

Orion 3-Star RDO® Meter
Dissolved oxygen and temperature measurement

Orion 4-Star pH/RDO® Meter
Dissolved oxygen, pH and temperature measurement

Orion 5-Star pH/RDO/Conductivity Meter
Dissolved oxygen, pH, conductivity, salinity, TDS, resistivity and temperature measurement

Call 1-800-833-7958

Thermo Scientific Orion Star RDO® Specifications
Orion Star and Star Plus Meter User Guide
Thermo Orion Star RDO Meter Quick Start Guide