HI 2221 • HI 2223 Calibration Check™ pH Meters

HI 2221 and HI 2223 are able to detect if the calibration buffer solution is contaminated or if the temperature is outside the defined range. When a pH electrode is dirty, it has a slow response time & unstable reading. HI 2221 and HI 2223 warns the user in the event the electrode is dirty. See www.hannainst.com for more information.

• On-screen electrode condition and response
• Data Logging
• Up to 5 point calibration with 7 standard buffers
• On-screen calibration guides
• Automatic temperature compensation
• GLP (Good laboratory Practice)
• Last calibration data
• USB