Specification; Description Orion Star A221 pH portable meter kit with ROSS Ultra Triode low maintenance gel pH/ATC electrode, solutions, meter armor and field case Model Orion Star A221 pH/mV/RmV/ORP/Temperature Portable Meter Includes Star A221 pH Meter with Batteries; 8107UWMMD ROSS Gel-filled Epoxy pH/ATC Triode with 3 Meter Cable; 910410 pH 4.01 Buffer Pouches; 910710 pH 7.00 Buffer Pouches; 911010 pH 10.01 Buffer Pouches; 810001 ROSS Electrode Storage Solution; 911110 Rinse Solution; STARA-AR Protective Armor with Electrode Holder; STARA-CS Hard Carrying Case pH; Range
-2.000 to 20.000 Resolution 0.1, 0.01, 0.001 Relative Accuracy ±0.002 Calibration Points Up to 5 mV/RmV
Range
±2000.0 mV Resolution 0.1 Relative Accuracy ±0.2 mV or ±0.05 % of reading whichever is greater
Eh ORP Mode
Yes Temperature Range -5 to 105 °C, 23 to 221 ºF Resolution 0.1 Relative Accuracy ±0.1 Offset Calibration 1 point Datalogging Memory 1000 with time and date stamp Log Function Manual, Automatic with AUTO-READ™ Log Edit Delete last reading or all Inputs pH Electrode BNC, reference pin ATC Probe 8-pin mini-DIN Output
RS232, USB
Power AC Adapter
Optional –universal, 100-240 VAC
Battery Power Included –4 Aas Battery Life 800 hrs