Thermo Orion Star A211 Benchtop pH Meter
Features
- Displays pH, mV, RmV and temperature readings using any Orion BNC pH electrode
- AUTO-READ function alerts user and locks stable readings on backlit LCD screen
- USB and RS-232 ports allow easy transfer of up to 2000 time-stamped data points
- Free ground shipping
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
The Thermo Orion Star A211 benchtop pH meter is the ideal choice for any lab. The informative, backlit display shows pH/mV/RmV and temperature readings along with electrode status, time, date, sample ID, user ID and calibration points. For advanced users, features such as stability and averaging choices provide additional options.
Easy Integration
Thermo Orion Star A210 series benchtop meters provide a large storage capacity for time-stamped data points, which can be conveniently uploaded to a PC through the meter's USB and RS-232 ports. Complimentary data analysis software allows users to quickly view and manipulate data. Accuracy can be ensured through 5 point calibration and calibration editing features.
Benefits
- AUTO-READ function alerts user and locks on-screen readings when stable
- Up to 5 point pH calibration with automatic recognition of USA/NIST and DIN buffers
- Calibration editing allows user to fix calibration errors without complete recalibration
- USB and RS-232 ports to upload data and update included data analysis software
- Non-volatile memory holds up to 2000 time-stamped data points
- Electrode arm and newly-designed probe holder to place probes into samples
- Universal power supply or battery power option
- Interface supports English, Spanish, French, Italian, German and Chinese languages
- IP54-rated splashproof housing
- 3 year meter warranty
- pH
- Range: -2.00 to 20.00
- Resolution: 0.1, 0.01, 0.001
- Relative Accuracy: +/-0.002
- Calibration Points: Up to 5
- mV/RmV
- Range: +/-2000.0 mV
- Resolution: 0.1 mV
- Relative Accuracy: +/-0.2mV or 0.05%, whichever is greater
- EH ORP Mode: Yes
- Temperature
- Range: -5 to 105 C
- Resolution: 0.1
- Relative Accuracy: +/-0.1 C
- Offset Calibration: 1 point
- Datalogging
- Number of Points: 2000 with time and date stamp
- Log Function: Manual, ready (AUTO-READ), timed
- Log Edit: Delete lindividual points, group of points or all
- General
- Display: Backlit LCD
- Inputs: pH Electrode - BNC, ATC Probe - 8-pin mini-DIN
- Outputs: RS-232, USB
- Power Adapter: Universal AC, 100-240 VAC
- Battery Power: 4 AAs, 800 hrs life
- Environmental Requirements: 5 to 45 C and 5 to 85% relative humidity, non-condensing
- Regulatory and Safety: CE, TUV 3-1, FCC Class A
- IP Rating: IP54, splashproof and dustproof
- Warranty: 36 months (from date of purchase)
In The News
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Thermo Scientific’s Orion Star A line is full of options for completing projects from environmental monitoring to quality control and beyond. These include benchtops like the Orion Versa Star and portables like the Orion Star A329. 
 
Making the right selection is important for ensuring project success, but sometimes choosing a meter can be difficult. To make things a little easier, we talked with Ricki Hartwell, the global product manager for Thermo Scientific’s Orion Laboratory and Field Instruments. She gave some tips to help customers find the best meter to meet their needs. Let’s take a look at her recommendations for benchtops.
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While all the work that goes into providing clean water often goes unnoticed, analysts like Michele Gilkerson, a water research analyst with the City of Columbus Division of Water, know exactly how much goes into securing safe water for millions of people. 
 
Gilkerson started with Battelle Memorial Institute in 1991 in their water ecology section. There, she saw how interesting source water monitoring could be, even though it isn’t often spotlighted in the environmental sector.
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