Orion Star™ A221 Portable pH Meter
Orion Star™ A221 Portable pH Meter
Thermo Scientific™

Orion Star™ A221 Portable pH Meter

Reliably measure pH, mV, ORP and temperature with our portable pH meter for advanced field analysis and printer or computer interfacing.
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Catalog NumberType
STARA2218pH Meter Food/Beverage Kit
STARA2210
STARA2216pH Meter Standard Kit
STARA2217pH Meter ORP Kit
STARA2215
Catalog number STARA2218
Price (USD)
1,656.00
Online Exclusive
1,840.00
Save 184.00 (10%)
Each
Estimated availability date  Pending  
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Type:
pH Meter Food/Beverage Kit
Price (USD)
1,656.00
Online Exclusive
1,840.00
Save 184.00 (10%)
Each
Add to cart
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Record accurate and reliable pH, mV, ORP and temperature measurements with the Thermo Scientific™ Orion Star™ A221 Portable pH Meter. This meter is ideal for a wide range of applications and advanced pH analysis in the field. Perform up to a 5 point pH calibration, log up to 1000 data point sets with time/date stamp and easily transfer calibration and data logs via USB or RS232 to a printer or computer with free downloadable Orion Star™ Com software. Waterproof meter ensures durable, rugged performance in outdoor environments with an IP67-rated housing.

Don't leave your measurements to chance when analyzing samples outside the lab. Orion Star A221 Portable pH Meters are designed to offer the reliability you need in a user-friendly package for your dedicated pH testing needs. This waterproof, portable meter displays critical data with your measurement including temperature, date and time, read type, measurement stability, active calibration info and power source status.

  • Measure pH, mV, relative mV or ORP with temperature
  • Perform up to a 5 point pH calibration using automatic buffer recognition of NIST or DIN buffer groups with choice to manually enter custom buffer values
  • Informative, easy-to-read backlit graphic display with clear onscreen instructions simplifies operation
  • Capture your critical readings with measurement stability indicator and selectable read modes — Auto-Read holds a stable reading and Continuous shows changing readings with hold option
  • Data log collects and date/time stamps up to 1000 measurement sets
  • Non-volatile meter memory ensures your data and settings are protected, even with loss of power
  • Orion Star Com software facilitates data transfer to a computer via USB or RS232 connections
  • 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
  • 3-year replacement warranty

Disclaimer to internal research use restriction:
Any restrictions on the purchaser to utilize the product(s) for internal research purposes only does not apply to the product(s) on the web pages associated with this statement.

Specifications
AC AdapterUniversal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Accuracy (Temperature)±0.1°C
Accuracy (mV)±0.2 or ±0.05%, whichever is greater
Accuracy (pH)±0.002
Alarm OutputCalibration due alarm (fixed 12 hour)
Battery Life800 hr.
Battery Type4 x AA
Certifications/ComplianceCE, TUV 3-1, FCC Class A
Channels1
Data Management DetailsTransfer single, range or all data points to printer or computer
DescriptionOrion Star A221 pH portable meter food kit with ROSS Spear-Tip pH electrode and ATC probe
Dimensions (L x W x H)24 x 10 x 6.5 cm (9.5 x 3.9 x 2.6 in.)
IP RatingIP67
IncludesStar A221 pH meter, 8163BNWP ROSS spear-tip pH electrode, 927007MD stainless steel ATC probe, pH 4/7/10 buffer and rinse pouches, ROSS storage solution, protective meter armor, hard-sided carrying case, 4 AA batteries, computer cable
InputsBNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (ATC temperature probe)
Isopotential Point7.000pH
KeypadComprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
LanguagesEnglish, Spanish, French, Italian, German and Chinese; Portuguese and Korean Available with Software Update
MemoryNon-volatile memory preserves data log, calibration log and meter settings
ModelOrion Star A221 pH/mV/RmV/ORP/Temperature Portable Meter
OutputsUSB, RS-232
Power Supply4 AA batteries (included) or universal AC adapter (sold separately)
Probe TypepH electrode, ORP electrode, reference half-cell electrode, ATC temperature probe (includes 8163BNWP ROSS spear-tip pH electrode and 927007MD ATC probe)
Range (ORP)±2000.0mV
Range (Relative mV)±2000.0mV
Relative Humidity Range5 to 85%, non-condensing
Resolution (Temperature)0.1°C, 0.1°F
Resolution (mV)0.1mV
StabilitySmart Stability and Smart Averaging
Temperature (English) Operating41°F to 113°F (ambient)
Temperature (Metric) Operating5°C to 45°C (ambient)
Temperature Probe Calibration1 point temperature offset calibration
Temperature Range (English)22.0°F to 221.0°F
Temperature SelectionManual or automatic with ATC temperature probe
TypepH Meter Food/Beverage Kit
Weight (English)1.2 lb.
Weight (Metric)0.5 kg
Backlight OptionYes (Selectable)
CalibrationpH, relative mV (RmV), ORP and temperature
Calibration Points1 to 5
Data Points1000 with Date and Time Stamp
Display TypeLCD, Graphic with Backlight
Log Function TypeAutomatic with Auto-Read Measure Mode, Manual with Continuous Measure Mode
Measurement ModespH, mV, Relative mV, ORP with Temperature
Range (mV)±2000
Range (pH)-2 to 20
Resolution (pH)0.001, 0.01, 0.1
Temperature Range (Metric)-5°C to +105°C
Unit SizeEach
Orion Meters Software and Upgrades

Orion Meter Software Updates and Computer Software

Orion benchtop and portable meters are designed to help deliver accurate, consistent results, day after day. Boost productivity by upgrading your software today.
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