Hanna Instruments HI-2111B Glass Bodied pH Half Cell Electrode
The HI-2111B is a glass body pH half-cell electrode with a BNC connector. This sensing electrode is made with high temperature glass and is to be used in conjunction with a reference half-cell electrode.
This design is ideal for use in strong alkaline solutions as well as for general purpose measurements.
- High Temperature (HT) Glass
- Half-Cell Design
- BNC Connection
The HI-2111B uses high temperature (HT) glass, spherical bulb, and glass body. This electrode has a coaxial cable and BNC connector.
High Temperature Glass Formulation
The measurement of pH at very high temperatures is detrimental to the sensitive glass bulb and will shorten the life of it. A pH electrode with general purpose (GP) glass will have a resistance of 100 megaohms at 25°C while the resistance of HT glass is around 400 megaohms at 25°C. As the HI-2111B is used at elevated temperatures, the resistance decreases to approach that of GP glass. The HI-2111B is suitable to use with samples that measure from 0 to 100°C.
Spherical Bulb
The spherical bulb is for general purpose use. Other tip shapes include conic for penetration and flat tip for surface measurements.
Glass Body
The glass body is ideal for laboratory use. The glass is resistant to many harsh chemicals and is easily cleaned. The glass body also allows for a fast transfer of heat to the internal reference electrolyte. The mV generated by the reference cell is temperature dependent. The faster the electrode reaches equilibrium, the steadier the reference potential.
BNC Connector
The HI-2111B uses a BNC connector. This type of connector is universal in that it can be used on any pH meter that has the female BNC probe input.
Specifications
| Description | pH Half-cell |
| Range | pH: 0 to 14 |
| Recommended operating temp | 0 to 100°C |
| Tip/Shape | spheric (dia: 9.5mm) |
| Body material | glass |
| Cable | coaxial |
| Recommended use | general purpose, strong alkaline solutions |
| connection | BNC |
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.