Overview
The Hanna Instruments 12224I is a multi-parameter probe engineered to simultaneously measure conductivity (EC), pH, and temperature. This three-in-one probe design eliminates the need for separate sensors, making it an economical choice for quality control, environmental monitoring, and process testing. The combination of pH measurement, conductivity sensing, and integrated temperature compensation in a single unit streamlines both calibration and field deployment.
Key Features
- Simultaneous measurement of pH, conductivity (EC/TDS), and temperature
- Integrated temperature sensor for automatic temperature compensation
- Durable polypropylene housing resistant to chemical splash and moisture
- Cloth junction design on pH element for rejuvenation and extended service life
- Graphite conductivity sensors resistant to salt deposits and contamination
- Compatible with multiple Hanna meters and data logging systems
Technical Specifications
- Measurement Type: Multi-parameter (pH, Conductivity, Temperature)
- pH Measurement Range: 0.00 to 14.00 pH
- Conductivity Range: 0.00 to 20.00 mS/cm
- Temperature Range: 0°C to 60°C (32°F to 140°F)
- pH Electrode: Cloth junction with low-temperature glass sensing bulb
- EC/TDS Sensors: Dual graphite amperometric sensors
- Cable Length: Standard 2 m (6.6 feet)
- Housing Material: Polypropylene (chemical resistant)
- Connector Type: 7-pole DIN connector (standard Hanna configuration)
Typical Applications
- Aquaculture and hydroponics nutrient monitoring
- Potable and wastewater quality testing
- Industrial process water control
- Pharmaceutical and food manufacturing QC
- Environmental and soil testing
- Swimming pool and spa water analysis
- Greenhouse irrigation management
Compatibility & Replacements
Compatible With
- Hanna combo pH/conductivity/TDS meters
- Hanna multiparameter water quality analyzers
- Hanna HI98 and HI91 series meter platforms
- Meters equipped with 7-pole DIN connector
- Hanna data logging and networked monitoring systems
Replaces / Drop-In Replacement For
Verify compatibility with your specific Hanna meter model before ordering. The 12224I is designed as a spare probe for compatible Hanna instrumentation. Contact your system integrator or Hanna Instruments technical support to confirm fit with your existing equipment.
Works With
- Hanna Instruments official software and meter interfaces
- Temperature-compensated calibration protocols
- Standard pH buffer solutions (4.01, 7.01, 10.01 pH)
- Conductivity calibration standards (EC reference solutions)
- GLP data logging and reporting systems compatible with Hanna probes




