Used Good ORION 3-Star series

Star series portable meters feature simple three-button operation with convenient Quick-Start guides to help you get started and provide support while in use. Smart Stability™ and Smart Averaging™ automatically optimize the measurement process to ensure accurate results. Meters offer a full complement of GLP-related features including datalogging with time/date stamp, electrode verification, and optional 21 CFR Part 11 software.

Repair & Calibration: Instrumart is a factory service center for the original Star series.
Features
Manufactured by Thermo Scientific Orion
Simultaneous display of conductivity, resistivity, TDS or salinity and temperature measurements
The Thermo Scientific Orion SMART STABILITY and SMART AVERAGING functions
Meets all U.S. Pharmacopeia (USP) requirements
Accepts cell constants from 0.001 to 199.9 cm-1
Compatible with 2-electrode and 4-electrode conductivity cells
Temperature calibration capability
Conductivity / TDS / salinity / resistivity calibration of up to 5 points
Reading reference temperatures at 5°C, 10°C, 15°C, 20°C or 25°C
Storage of up to 10 individually password-protected methods for easy retrieval of operation procedures
Datalog up to 1000 points with time and date stamp
RS232 port for easy data downloading and software updates
Benchtop units can control an autosampler and the 096010 stirrer probe (each sold separately)
Benchtop units are splashproof with an IP54-rated housing and include a universal power supply
Portable units are waterproof with an IP67-rated housing and run for over 2,000 hours on four AA batteries