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Orion Star A111 Bench Top pH Meter



Take simple, routine pH, mV and temperature measurements with the Thermo Scientific™ Orion Star™ A111 Benchtop pH Meter. This meter is an easy-to-use and budget-friendly instrument for basic pH analysis in the lab. Perform up to a 3 point pH calibration with easy recall of calibration points and slope. Quickly navigate setup menus and ensure consistent calibrations using the simple keypad layout and on-screen text prompts. Use the included electrode stand to easily place sensors in samples and simplify storage to minimize breakage.

AC Adapter Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. 1010003)
Battery Life 2000 hr.
Battery Type 4 x AA (sold separately)
Certifications/Compliance CE, TUV 3-1, FCC Class A
Channels 1
Description Orion Star A111 benchtop pH meter with stand
Accuracy (mV) ±0.2 or ±0.05%, whichever is greater
Accuracy (pH) ±0.01
Accuracy (Temperature) ±0.1°C
Calibration pH, relative mV (RmV) and temperature
Calibration Points 1 (relative mV)
Data Management Details Internal Data Point Memory
Data Points 50
Display Type LCD
Log Function Type Automatic with Auto-Read Measure Mode, Manual with Continuous Measure Node
Measurement Modes pH, mV or relative mV with temperature
Outputs None
Range (mV) ±1600.0
Range (pH) -2 to 16
Resolution (pH) 0.01, 0.1
Temperature Range (Metric) -5°C to +105°C
Includes Star A111 pH meter, electrode stand, 100-240V universal power adapter
Inputs BNC (pH or ORP electrode), 8 pin MiniDIN (ATC temperature probe)
IP Rating IP-54
Isopotential Point 7.00pH
Keypad Simple with highlighted measure key, scroll and shortcut keys
Languages English
Memory Non-volatile memory preserves log and settings
Model Orion Star A111 Benchtop pH/mV/RmV/Temperature Meter
Power Supply Universal AC adapter (included) or 4 AA batteries (sold separately)
Probe Type pH electrode, ORP electrode, ATC temperature probe (purchase separately)
Range (Relative mV) ±1999.9mV
Relative Humidity Range 5 to 85%, non-condensing
Resolution (mV) 0.1mV
Resolution (Temperature) 0.1°C, 0.1°F
Stability Smart Stability and Smart Averaging
Temperature (English) Operating 41°F to 113°F (ambient)
Temperature (Metric) Operating 5°C to 45°C (ambient)
Temperature Probe Calibration 1 point temperature offset calibration
Temperature Range (English) 22.0°F to 221.0°F
Temperature Selection Manual or automatic with ATC temperature probe
Warranty 3 Year Meter Warranty
Dimensions (L x W x H) 24 cm x 18 cm x 11 cm (9.5 in. x 7.1 in. x 4.3 in.)
Weight (English) 2 lb.
Weight (Metric) 0.9 kg
Unit Size Each


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