
Hanna Instruments HI-5311 Glass Body General Purpose Reference Electrode
Reference electrode with ceramic junction and glass body.
The HI-5311 is a glass body, refillable, double junction, half-cell reference electrode with a 4 mm banana connector.
The electrode has a single ceramic junction in the outer reference cell and is made for use in temperatures ranging from -5 to 100°C.
Made for general purpose use with pH, ORP, or ion selective electrode half-cells, as well as for use in a variety of titrations.
Specifications
| Reference | Double, Ag/AgCl |
| Junction | Ceramic, single |
| Connector | 4 mm Banana Connector |
| Electrolyte | KCl 3.5M |
| Max Pressure | 0.1 bar |
| Range | -5 to 100°C (23 to 212°F) |
| Body Material | Glass |
| Cable | 1 m (3.3') |
| Recommended Use | General purpose (wide temperature range), ISE, titrations |

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.