Professional replacement pH electrode designed specifically for the Hanna HI98112 Piccolo 2 pH tester. The HI1290 features a built-in temperature sensor for automatic temperature compensation, gel-filled reference cell for maintenance-free operation, and a durable ceramic junction ideal for general-purpose field applications.
Key Features & Benefits
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Built-in temperature sensor – Integrated ATC for accurate pH readings across temperature variations
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Gel-filled electrolyte – Maintenance-free, no refilling required
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Ceramic junction – Durable single junction design with 15-20 µL flow rate
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Spherical glass tip – 5mm diameter tip for versatile sample testing
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Wide pH range – Measures from 0 to 13 pH
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Multi-pin connector – Secure, reliable connection to HI98112 meter
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Temperature resistant – Operating range: 0 to 70°C (32 to 158°F)
Why Replace Your Electrode?
pH electrodes are consumable components that degrade over time due to glass membrane aging, junction clogging, and electrolyte depletion. Regular electrode replacement ensures accurate, reliable measurements and extends the life of your HI98112 Piccolo 2 pH tester. The HI1290 is engineered to deliver the same precision and performance as your original electrode.
Technical Design
Integrated Temperature Sensor
The built-in temperature sensor enables automatic temperature compensation (ATC), ensuring accurate pH readings regardless of sample temperature fluctuations. This eliminates the need for manual temperature correction and streamlines your testing workflow.
Gel-Filled Reference System
The single Ag/AgCl reference cell uses a stable gel electrolyte that never requires refilling. This maintenance-free design reduces downtime and ensures consistent reference potential for reliable measurements over the electrode's lifetime.
Ceramic Junction
The single ceramic junction provides a controlled flow rate of 15-20 µL, offering excellent resistance to clogging while maintaining good electrical contact with samples. This design is ideal for general-purpose testing in field applications.
Spherical Glass Tip
The 5mm diameter spherical tip provides a large surface area for fast response times and is suitable for a wide variety of sample types, from liquids to semi-solids.
Compatibility
The HI1290 electrode is specifically designed as a replacement probe for the Hanna HI98112 Piccolo 2 pH tester. The multi-pin connector ensures secure, error-free installation.
Recommended Applications
- Field testing and environmental monitoring
- Water quality analysis
- Aquaculture and aquarium testing
- Hydroponics and agriculture
- Food and beverage quality control
- Educational laboratories
- General-purpose pH measurement
Technical Specifications
| Specification |
Detail |
| SKU |
HI1290 |
| Compatibility |
HI98112 Piccolo 2 pH Tester |
| Measurement Range |
0 to 13 pH |
| Reference Cell Type |
Single, Ag/AgCl |
| Junction Type / Flow Rate |
Ceramic, single / 15-20 µL |
| Type of Electrolyte |
Gel (maintenance-free) |
| Tip / Shape |
Spherical (diameter = 5 mm) |
| Max. Pressure |
0.2 bar |
| Temperature Operating Range |
0 to 70°C (32 to 158°F) |
| Connector Type |
Multi-pin |
| Recommended Use |
Field applications, general purpose |
Electrode Care & Maintenance Tips
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Storage: Store electrode in pH storage solution (HI70300) to keep the glass membrane hydrated
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Cleaning: Clean regularly with appropriate electrode cleaning solution to remove buildup and maintain response time
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Calibration: Calibrate your meter regularly using fresh buffer solutions for optimal accuracy
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Handling: Avoid touching the glass bulb and junction area to prevent contamination
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Replacement: Replace electrode when response time becomes slow or readings drift excessively
Why Choose Genuine Hanna Electrodes?
Genuine Hanna Instruments electrodes are manufactured to exacting quality standards and are specifically engineered for compatibility with your Hanna meter. Using authentic replacement electrodes ensures optimal performance, accuracy, and longevity of your testing equipment. Each electrode undergoes rigorous quality control testing before shipment.
What's Included
- HI1290 pH electrode with built-in temperature sensor
- Multi-pin connector for HI98112 Piccolo 2
Note: Storage solution and cleaning solutions sold separately. We recommend HI70300 storage solution and HI7061 general-purpose cleaning solution for optimal electrode maintenance.
