Hanna Instruments HI-12303 Plastic bodied pH/temperature probe
The HI-12303 is a Polyetherimide (PEI) body, double junction pH electrode with a built-in temperature sensor and connects to the meter that has a Quick Connect DIN connector. This type of connector is proprietary to specific meters such as the HI-98190.
HI-12303 Plastic bodied pH/temperature probe
- Chemically-Resistant PEI Body
- Double Junction Reference
- General Purpose (GP) Glass
The HI-12303 uses general purpose (GP) glass, spherical bulb, polyetherimide (PEI) body, single ceramic reference, and double junction.
The HI-12303 pH electrode has a single ceramic junction in the outer reference cell and the spherical pH sensing portion is made with general purpose glass and is protected by the fins of the durable PEI body. This design consideration excels in measurements with portable meters due to the durability and that the probe does not require maintenance other than cleaning and calibration.
PEI Electrode Body
The PEI (polyetherimide) electrode body is suitable for a wide range of applications and excels in field measurements due to its durability. The shielding around the spherical glass tip minimises breakage due to accidental bumping or dropping of the electrode. The PEI plastic is a high quality plastic that is chemically resistant to many harsh chemicals.
Double Junction Reference
A double junction electrode has an internal compartment surrounding the reference wire. Silver ions are present in the electrolyte of the internal compartment, which houses the Ag/AgCl reference wire; the electrolyte outside this compartment is silver free. The double junction design means that virtually no silver from the electrode enters the sample. This design allows measurement in applications where silver ions in the sample are undesirable or silver precipitates on the junction are likely to form.
Quick Connect Din Connector
The HI-12303 uses a Quick Connect DIN connector that makes attaching and removing the probe simple and easy. This type of connector is proprietary to the meter. See specifications table for compatible meters.
Specifications
| Sku | HI-1230B, HI-12303, HI-1230Y |
| Description | Combination pH electrode |
| Reference | Double, Ag/AgCl |
| Junction/flow rate | ceramic, single / 15-20µL/h |
| Electrolyte | Gel |
| Max Pressure | 2 bar |
| Range | pH: 1 to 12 |
| Recommended Operating Temp. | -5 to 70°C |
| Glass Type | LT (Low Temperature) |
| Tip/Shape | Spheric (dia: 7.5mm) |
| Temperature Sensor | DIN and BNC+RCA model only HI-12303 and HI-1230Y) |
| Amplifier | DIN model only (HI-12303) |
| Body Material | PEI |
| Cable | Coaxial; 1m |
| Recommended Use | Field applications, soil solutions, photographic chemicals, laboratory and general use |
| Connection | HI-1230B BNCHI-12303 Quick Connect DINHI-1230Y BNC+RCA** |
| **Thermistor with RCA connector | |
|---|---|
| Warranty | 6 months |
Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.