Hanna Instruments HI-764113 Replacement Optical Dissolved Oxygen Probe with protective sleeve for HI-98198
Rugged Optical Dissolved Oxygen Probe for Fresh and Saltwater Applications
- Digital, weighted probe
- No membranes
- No electrolytes
- No oxygen consumption
- No flow dependence or minimum flow rate
- Fast and stable readings
- Not affected by sunlight
- Factory calibrated “Smart Cap”
- Smart Caps last one year
- Minimal maintenance
How the probe works
The Hanna HI-764113 optical DO sensing probe is based on the principle of fluorescence quenching. The sensing method features an immobilised pT based luminophore that is excited by the light of a blue LED and emits a red light. Dissolved oxygen quenches this excitation.
The major components of the probe include a blue LED for excitation, a red LED that is used as a reference light, and a photodetector. The Smart Cap™ is locked in place on the optical probe and includes the immobilised 02 sensitive luminophore with rugged insoluble black oxygen permeable protective layer.
The sensor provides accurate DO measurements over long periods of time without the need for frequent calibration.
Specifications
| HI-764113 Probe Specification | |
|---|---|
| Probe Body Material | ABS |
| Smart Cap™ material | Polypropylene |
| Cable jacket material | PVC |
| Cable Length | 4m, 10m and 20m options |
| probe guard | 316 Stainless steel |
| Temperature Measurement | Thermistor |
| Pressure | 20m (29 PSI) |
| Probe Dimensions with guard | 174 x 25mm |
| Response Time | 45 seconds |
| Probe weight with guard | 400g with 4m cable length |
| probe ingress protection rating | IP68 |
| Sensor type | Optical; luminescence quenching |
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.