pH Portable Meter

Thermo Orion - Star A121 - Basic

pH Range: -2.00 to 16.00, RH Range: 5 to 85%, non-condensing
mV Range: ±1600.0mV, Relative mV Range: ±1999.9mV
Temperature Range: 22.0° to 221.0° F, -5.0° to 105.0° C

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Description
Specifications

Take simple, routine pH, mV and temperature measurements with the Thermo Scientific Orion Star A121 pH Portable Meter, an easy-to-use and budget-friendly instrument for basic pH analysis in the field

Perform up to a three 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. This waterproof meter has an IP67-rated housing for rugged protection in outdoor environments.

Thermo Scientific Orion Star A121 pH portable meters are a simple, economical solution for your routine outdoor sample analysis. Featuring an emphasized measure key, selectable read modes and measurement stability indicator, our basic Orion Star A121 pH meters are designed to deliver measurements you can trust at an affordable price.

Measure pH, mV or relative mV with temperature
Perform up to a three point pH calibration with automatic buffer recognition or manual buffer entry
Simplified, easy-to-read display shows main measurement with temperature, stability indicator and electrode condition icon
User-friendly operation with basic calibration text prompts
Easily recall calibration data for procedure checks
Non-volatile memory preserves 50 point internal data log and meter settings, even with loss of power
Flexible power options with AA batteries or optional universal power adapter
IP67-rated housing is waterproof for rugged field operation
Meter kits include hard-sided field case and protective meter armor with electrode holders, adjustable wrist/belt strap and built-in meter stand
Meters offer CE, TUV 3-in-1 and FCC Class A certifications and 3-year replacement warranty

Many configurations, electrodes, consumables and accessories available on request.

Stability	Smart Stability and Smart Averaging
Resolution (Temperature)	0.1°C, 0.1°F
Temperature Range	22.0° to 221.0° F -5.0° to 105.0° C
Temperature Probe Calibration	1 point temperature offset calibration
Operating Temperature	41° to 113°F (ambient) 5° to 45°C (ambient)
Warranty	3 year meter warranty
Weight	2 lb. 0.5kg
Temperature Selection	Manual or automatic with ATC temperature probe
AC Adapter	Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Accuracy (pH)	±0.01pH
Accuracy (mV)	±0.2 mV or ±0.05% of reading whichever is greater
Accuracy (Temperature)	±0.1°C
Battery Life	2000 hr.
Battery Type	4 x AA
Calibration	pH, relative mV (RmV) and temperature
Calibration Points	1 to 3
Data Management Details	Internal data point memory
Channels	1
Certifications/Compliance	CE, TUV 3-1, FCC Class A
Languages	English
Log Function Type	Automatic data logging with Auto-Read measure mode; manual data logging with Continuous measure mode
Dimensions (L x W x H)	24cm x 10cm x 6.5cm (9.5 in. x 3.9 in. x 2.6 in.)
Data Points	50
Display Type	LCD
Resolution (pH)	0.1, 0.01
Range (pH)	-2.00 to 16.00
IP Rating	IP-67
Inputs	BNC (pH or ORP electrode),8 pin MiniDIN (ATC temperature probe)
Isopotential Point	7.00pH
Keypad	Simple with highlighted measure key, scroll and shortcut keys
Memory	Non-volatile memory preserves log and settings
Measurement Modes	pH, mV or relative mV (RmV) with temperature
Outputs	None
Probe Type	pH electrode, ORP electrode, ATC temperature probe (purchase separately)
Power Supply	Universal AC adapter (included) or 4 AA batteries (sold separately)
Range (Relative mV)	±1999.9mV
Relative Humidity Range	5 to 85%, non-condensing
Resolution (mV)	0.1mV
Range (mV)	±1600.0mV