Thermo Scientific Orion Star Series Benchtop pH / Ion Meters

Thermo Scientific Orion Star Series Benchtop  pH / Ion Meters

Combine simple three-button operation with exceptional performance
Rugged design is well-suited for both lab and field applications
Bright backlit LCD is easy to read in various lighting conditions
Quick-Start guides encourage intuitive and efficient operation
Available 21 CFR Part 11 software for FDA regulatory compliance (order separately to the right)


Turn the unit on, calibrate, and measure with only three main buttons operation couldn't be simpler! The convenient Quick-Start guide will help you get started and provides support while in use. Smart Stability and Smart Averaging ensure accurate results. The Thermo Scientific Orion Star Series offers a full complement of GLP-related features including datalogging with time/date stamp, electrode verification, and optional 21 CFR Part 11 software (included with 5-Star meters. You can record and store up to ten setup parameters and calibrations. Download additional methods and software updates via the Web.
Meters feature automatic or manual pH calibration, auto-buffer recognition of US/NIST and DIN buffers, advanced self-tests and self-diagnostics, and RS-232 or optional USB connectivity. Choose either meter only or full kit.

Type Benchtop
Model Star 4 pH/mV
Range pH -2.000 to 19.999
mV ±1999.9
ion 0 to 19,999
concentration 0 to 19,999
Temperature -5.0 to 105.0°C
Resolution pH 0.1/0.01/0.001
mV 0.1
ion 1, 2, or 3 sig. digits
concentration 1, 2, or 3 sig. digits
Temperature 0.1°C to 99.9°C;1.0°C over 99.9°C
Accuracy pH ±0.002
mV ±0.2 mV or 0.05% whichever is greater
ion ±0.2 mV or 0.05% whichever is greater
concentration ±0.2 mV or 0.05% whichever is greater
Temperature ±0.1°C
Calibration pH Up to 5 points
mV 1 point
Buffer recognition US,NIST,DIN, and custom
Temp compensation Automatic
Datalogging Yes
Memory 200 data point
Output RS-232 or USB (with optional interface cable
RS-232 interface Yes
Display Backlit LCD dual parameter plus temperature
Power Univeral power adapter or batteries
Battery Four AA (not included)
Battery life 2000 hrs
Low battery indicator Yes
Operating temperature 5 to 45°C
Dimensions 91/4"L x 65/8"W x 33/4"W
Includes Meter, Quick-Start guide, and universal power adapter
Manufacturer number 1115000


« Ion Meters