
Hanna Instruments HI-768L Air, Gas & liquid Pt100 Probe
The HI-768L is an air and liquid Pt100 probe designed for use with one of Hanna’s Pt100 thermometers. A cable extends 1 m (3.3’) from the handle to the meter connection. The rounded tip of the probe allows users to obtain highly accurate temperature readings of air and liquid samples.
- Measures up to 350°C (622°F)
- Pt100 sensor
- AISI 316 stainless steel
The Air and Gas Pt100 Probe - HI-768L is designed to measure the temperature of air and liquid samples.
The operating principle of resistance thermometers is based on the increase of electric resistance of metal conductors (RTD: Resistance Temperature Detectors) with temperature.
Among the various metals to be used in the construction of RTDs, platinum (Pt), a noble metal, is one that can measure temperatures throughout a wide range with a stable, linear behaviour.
The most common RTD sensor using platinum is the Pt100. Hanna’s Pt100 thermometers and probes use multi-wire technology in the connection cable to obtain high levels of accuracy in industrial and laboratory applications.
With a strong, corrosion-resistant, AISI 316 stainless steel construction, the HI-768L probe is able to measure samples up to 350°C (622°F).
Specifications
| Range | -30 to + 350°C |
| Response Time | 30 seconds |
| Accuracy | +/-0.25°C |
| Sensor | Pt100 |
| Probe | Stainless steel AISI 316 |
| Dimensions | 205mm length x 5mm diameter |

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.