
Hanna Instruments HI-1285-61 pH EC TDS and Temperature Electrode
Recommended for use in greenhouses, hydroponics, environmental monitoring, water treatment, boilers, and cooling towers. Three sensors in a single probe.
HI-1285-61 pH EC TDS & Temperature Electrode
A pre-amplified pH, EC, TDS and Temperature probe with a single reference and cloth junction suitable for use in agriculture. It has a maintenance free gel electrolyte, plus a DIN connector. Durable body material – polypropylene.
The electrode can measure: 0 to 12 pH; 0 to 50˚C – low temperature glass type. The pH electrode circuit has a built-in amplifier that will reduce the effects of electrical noise from motors, ballasts and pumps on the high impedance pH measurement.
The EC/TDS readings are performed by an amperometric sensor. An alternating voltage is applied to the sensor and the amount of current that passes between the two stainless steel pins is dependent upon the amount of salts (fertiliser) present. A greater amount of salt present results in an increase in conductance.
Specifications
| Description | Pre-amplified pH, EC, TDS & temperature probe |
| Reference | Single, Ag/AgCl |
| Junction/flow rate | cloth |
| Electrolyte | Gel |
| Max pressure | 0.1 bar |
| Range | pH: 0 to 12 /ECT: 0 to 50°C - LT |
| Tip/Shape | spheric (dia: 8.0mm) |
| Glass type | Low temperature |
| Temperature sensor | Yes |
| Amplifier | Yes |
| Body material | Polypropylene |
| Cable | 7-pole; 1m |
| Recommended Use | Greenhouses, hydroponics, environmental monitoring, water treatment, boilers, cooling towers |
| Plug | DIN with CAL CheckTM |

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.