Thermo Scientific Orion Star A221 pH, mV, RmV and temperature meter features an intuitive user interface with plain language screen prompts. A large, backlit graphic LCD, shows measurement and temperature along with electrode status, time/date, sample ID, user ID, and calibration data.

Up to five point automatic calibration with USA/NIST and DIN buffers, auto-buffer recognition buffers, and recailbration feature to fix calibration errors. GLP-related features include 2000 data points with time/date stamp and electrode verification. Meter utilizes RS-232 or USB for connectivity and includes data analysis software.

METER KIT INCLUDES:  ROSS™ Triode pH/ATC electrode, protective armor with electrode holder, 10 pouches each of 4, 7, 10 buffer and rinse solution, 475 mL ROSS electrode storage solution, hard carrying case, and four AA batteries.

Specifications:  A221 pH Portable Meter Kit

• Meter Type:  Portable
• Display type:  Graphic LCD
• Connections pH:  BNC;  Temperature:  8-pin mini-DIN
• Min pH (pH):  -2
• Max pH (pH):  20
• pH Resolution:  0.001/0.01/0.1
• pH Accuracy:  ±0.002 pH
• Buffer Recognition:  DIN, NIST, and USA
• Calibration:  Up to 5 points
• Min mV (mV):  -1999
• Max mV (mV):  1999
• mV Resolution:  0.1 or 1 mV
• mV Accuracy:  ±0.2 mV or 0.05%, whichever is greater
• Dissolved Oxygen Accuracy:  ±2% full scale
• Min Temperature:  -5°C, (23°F)
• Max Temperature:  105°C, (221°F)
• Temperature Resolution:  0.1
• Temperature Accuracy:  ±0.1°C
• Temperature Compensation:  Automatic or manual
• Interface:  RS-232 and USB
• Data Logging (points):  2000 data points
• Waterproof:  Yes
• Battery:  4 AA (included)
• Battery life (hr):  800hr
• Dimension:  4 ¼”W x 9 1/8”L x 2 3/8”D
• Meter Warranty:  3 year