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Orion Star™ A121 portable pH Meter


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Orion Star™ A121 portable pH Meter

Thermo Scientific Orion Star A121 pH Portable Meters combine simplicity with accuracy. A large LCD displays pH or mV readings along with temperature. Icons provide quick updates on battery life, electrode status and calibration information. Simple button layout and onscreen messages help with calibration and setup menu choices.

Orion STAR* A121 portable pH Meter Kit includes meter, 9107BNMD gel-filled, Triode pH/ATC electrode, soln. kits, rinse soln, protective armor and carrying case.

  • Large, informative screen clearly shows the main information, including pH or mV reading, temperature in °C or °F, meter mode, calibration information and battery life
  • Don't miss a reading - AUTOREAD* locks in the stable reading on your screen and ready indicator alerts when readings are stable
  • Up to 3 point pH calibration
  • Automatic recognition of USA/NIST and DIN buffers
  • Easily recall calibration slope data for procedure checksNon-volatile memory holds up to 50 data points
  • Four AA batteries (included) provide over 2000 hours of operation or purchase the universal power adapter (sold separately) to run meter on AC power
  • Perfectly portable, waterproof and protected to take anywhere with a IP67-rated housing
  • 3 year meter replacement warranty

Certifications: CE, TUV, FCC Class A limits
pH Mode
Range -2.00 to 16.00
Resolution 0.1, 0.01
Relative Accuracy ± 0.01
Calibration Points up to 3
mV Mode
Range mV: ± 1600.0 mV ;

RmV: ± 1999.9 mV

Resolution 0.1
Relative Accuracy ± 0.2 mV or ± 0.05% of reading whichever is greater
Calibration Points 1
Temperature Mode
Range -5 to 105°C
Resolution 0.1
Relative Accuracy ± 0.1
Display Custom LCD; simultaneous display of measurement and temperature with helpful indicator icons
Inputs BNC, 8-pin mini-DIN
Sensor Type pH or ORP electrode, temperature probe
Data Management 50 points
Environmental Operating Conditions
Ambient Operating Temperature 5 to 45°C
Relative Humidity 5 to 85% noncondensing
Power Supply Four AA
Battery Life 2000 hours
Warranty Period 3-year meter replacement
GSA Link

Ordering Info

Cat No Description Qty Price Qty UOM
H243-3 STAR A121 portable pH meter In Stock 1 $611.00 EA
H243-4 STAR A121 portable pH meter Kit In Stock 1 $1,040.00 EA

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