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Description	Orion Star A321 pH portable meter
Model	Orion Star A321 pH/mV/RmV/ORP/Temperature Portable Meter
Item Description	Orion Star A321 pH portable meter
Includes	Star A321 pH meter, 4 AA batteries, literature CD, printed quick start guide, computer interface cable and meter test certificate
Range (pH)	-2.000 to +20.000
Resolution (pH)	0.1, 0.01, 0.001
Accuracy (pH)	±0.002pH
Range (mV)	±2000.0mV
Range (Relative mV)	±2000.0mV
Range (ORP)	±2000.0mV
Resolution (mV)	0.1mV
Accuracy (mV)	±0.2 mV or ±0.05% of reading whichever is greater
Isopotential Point	7.000pH
Calibration	pH with calibration editing option, relative mV (RmV), ORP and temperature
Calibration Points	1 to 5
Resolution (Temperature)	0.1°C, 0.1°F
Accuracy (Temperature)	±0.1°C
Temperature Selection	Manual or automatic with ATC temperature probe
Temperature Probe Calibration	1 point temperature offset calibration
Channels	1
Display Type	LCD (Graphic with backlight)
Backlight Option	Yes, selectable
Keypad	Comprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
Measurement Modes	pH, mV, relative mV (RmV) or ORP with temperature
Stability	Selectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
Data Management Details	Transfer single, range or all data points to printer or computer
Data Points	5000 with date and time stamp
Log Function Type	Automatic data logging with Auto-Read and Timed measure modes; manual data logging with Continuous measure mode
Memory	Non-volatile memory preserves data log, calibration log and meter settings
Alarm Output	High/low limit alarm, calibration due alarm
Languages	English, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update
Inputs	BNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (ATC temperature probe)
Outputs	USB, RS-232
Power Supply	Universal AC adapter (included) or 4 AA batteries (sold separately)
AC Adapter	Universal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
Battery Life	800 hr.
Battery Type	4 x AA
IP Rating	IP-67
Certifications/Compliance	CE, TUV 3-1, FCC Class A
Temperature (English) Operating	41° to 113°F (ambient)
Temperature (Metric) Operating	5° to 45°C (ambient)
Relative Humidity Range	5 to 85%, non-condensing
Dimensions (L x W x H)	24cm x 10cm x 6.5cm (9.5 in. x 3.9 in. x 2.6 in.)
Weight (English)	1.2 lb.
Weight (Metric)	0.5kg
Methods	10 per channel with password protection
Temperature (English) Range	22.0° to 221.0° F
Temperature (Metric) Range	-5.0° to 105.0° C
Warranty	3 year meter warranty
Probe Type	pH electrode, ORP electrode, reference half-cell electrode, ATC temperature probe (purchase separately)
Unit Size	Each