This Thermo Scientific Orion Star A211 pH Benchtop Meter kit includes the 8302BNUMD Orion ROSS Triode 3-in-1 pH/ATC probe and the 810199 ROSS solution kit. The 8302BNUMD Orion ROSS Ultra Triode is a glass, combination electrode with built-in temperature sensor for convenient measurement of both pH and temperature in samples. The 810199 ROSS solution kit contains one 1-pint (475mL) bottle each of pH 4.01 buffer (910104), pH 7.00 buffer (910107), pH 10.01 buffer (910110) and ROSS pH electrode storage solution (810001) as well as one 1oz. (30mL) bottle of general pH electrode cleaning solution (900023) and one pH electrode storage bottle. The A211 pH Benchtop Meter is the ideal choice for any lab. Get the information you need quickly and easily from the large, backlit graphic LCD display. Informative display shows pH/mV/RmV and temperature along with electrode status, time, date, sample ID, user ID and calibration points. For advanced users, features such as stability and averaging choices provide additional options. Anyone can use this meter with its plain language screen prompts, soft keys that update for easy selection and a multilanguage interface that supports English, Spanish, French, Italian, German and Chinese. AUTO-READ™ locks in the stable reading on your screen, ready indicator alerts when readings are stable, and timed reading gathers data in specific time intervals. Provides up to 5 point pH calibration with automatic recognition for USA/NIST and DIN buffers. Fix calibration errors without a complete recalibration with calibration editing. The non-volatile memory holds up to 2000 data points with time and date stamp. Easily transfer data and keep meter software up-to-date with the USB and RS232 ports and complimentary data analysis software. Mix samples without a stir plate with direct control of the Orion Star stirrer probe (096019, sold separately). Included electrode arm and newly-designed probe holder make it easier to maintain and place probes into samples. Works with almost every AC power source with the included universal power adapter, or use four AA batteries (sold separately) to run the meter on DC power. IP54-rated housing handles splashes and is wall-mountable if table space is a problem. 3 year meter replacement warranty. Certifications: CE, TUV, FCC Class A limits. pH Range: -2.000 to 20.000. pH Resolution: 0.1, 0.01, 0.001. pH Relative Accuracy: ±0.002. pH Calibration Points: Up to 5. pH Calibration Editing: Yes. mV/RmV Range: ±2000.0 mV. mV/RmV Resolution: 0.1. mV/RmV Relative Accuracy: ±0.2 mV or ±0.05 % of reading whichever is greater. mV/RmV EH ORP Mode: Yes. Temperature Range: -5 to 105°C, 23 to 221ºF. Temperature Resolution: 0.1. Temperature Relative Accuracy: ±0.1. Temperature Offset Calibration: 1 point. Datalogging Number of Points: 2000 with time and date stamp. Datalogging Log Function: Manual, ready (includes AUTO-READ™), timed. Datalogging Log Edit: Delete individual points, group of points or all. Inputs: pH Electrode BNC, reference pin; ATC Probe 8-pin mini-DIN. Output: RS232, USB. AC Adapter: Included--universal, 100-240 VAC. Battery Power: Optional, 4 AAs. Battery Life: 800 Hours. Thermo Scientific Orion #: STARA2115.