
Hanna Instruments-991301 High Range EC, TDS, pH and °C Meter
Designed for optimum consistency and reproducibility the Hanna Instruments-991301 portable high range conductivity meter offers a great range of user selectable features to deliver greater consistency and reproducibility
The Hanna Instruments-991301 meter is supplied with:
- pH/EC/TDS/°C Hanna Instruments-1288 probe on 1m cable
- Starter pack of solutions
- Batteries
- Instructions
Key features
- Different TDS factors ranging from 0.45 to 1.00
- Temperature coefficients (ß) ranging from 0.0 to 2.4%
- Clear tutorial messaging on screen guides the user intuitively through the range of calibration buffers and temperature scale options
- Simple two button operation is easy to operate single-handedly - great for use out in the field
- IP65 waterproof housing
- Multi-parameter probe
- Hanna Instruments-1288 includes pH, EC/TDS and temperature in one convenient rugged handle supplied as standard with the HI 991301
- Solid state amplifier integrated into the probe to ensure against interference from transient electrical noise
- IP65 water resistant casing

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.