
Hanna Instruments-8734 Multi-range TDS Meter
This portable total dissolved solids (TDS) meter offers 3 measurement ranges to suit a wide range of applications and is supplied complete with a robust probe on a 1m long cable. The effects of temperature can be manually compensated for via a rotary dial on the front of the meter.
The Hanna Instruments-8734 has not only been specifically designed for the water condition industry, but particularly in the softening, demineralisation, reverse osmosis and drinking water applications.
Three ranges of measurement ensure the highest accuracy possible. All three ranges can be executed at the touch of a button, without having to change the conductivity probe. This makes it very easy to switch applications without having to worry about recalibration.
To enhance accuracy and efficiency, MTC (Manual Temperature Compensation) is available using a dial on the front panel.
For the best protection in the field, the four ring potentiometric probe is made of rugged PVC. To access difficult areas, the probe is supplied with a 1m cable. The ratio between conductivity and TDS is factory set at 0.5.
Ideal for:
- Waste Water Testing
- Measurements in water with high conductivity content
Key features
- Water resistant
- Three measurement ranges
- Rugged probe for field use
Supplied with:
- Hanna Instruments-76301D conductivity probe
- Hanna Instruments-70032 1382 mg/L (ppm) calibration solution sachet
- Battery
- Instructions and rugged carrying case

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.