
Hanna Instruments-935005 K-type Thermometer
HI 935005 is a hand-held waterproof thermometer that uses a K-type sensor together with an advanced microprocessor to deliver accurate temperature measurement with an extraordinary 1600 hour battery life. Battery level indication with low battery warning and error prevention furnishes this meter with advanced battery management functions.
High accuracy hand-held thermometer
Maintenance and awareness are the first lines of defence in the battle against legionella.
Supporting operators in this battle, the Hanna Hanna Instruments-935005 delivers highly accurate temperature measurements across a wide range using a K-type thermocouple probe.
Display showing minimum and maximum temperature values taken during the measuring session helps with comprehensive record taking.
Used regularly in applications where warm or hot water is converted into droplet or steam formation, the high accuracy HI 935005 can help to prevent the risk of Legionella by ensuring that temperatures are high enough in the water system to destroy the bacteria.
Ideal for
- Hospitals
- Schools and colleges
- Residential and care homes
- Civic centres and leisure centres
- Swimming pools and aquariums
- Cooling towers
- Breweries
Product uses
- Used to test pipe surface or water temperatures, the HI 935005 is well-placed to head off Legionella concerns for a wide variety of industrial and leisure industries.
- Air and water handling systems
- Pipe surface temperatures
- Water temperature from sentinel taps
- Beer mash tanks
Key features
- Water resistant casing
- Large LCD display gives clear readings for current temperature plus min and max temp values since startup
- Rubberised buttons are clearly marked for ease of use
- Easy shift between °C and °F
- HOLD to freeze readings on display and give more time to record data
- CLEAR button restarts evaluation of high and low values
- Equipped with Battery Error Prevention System to alert user if low battery is likely to adversely affect readings
Supplied with
- Batteries
- Instructions
Spare Probes & K-type thermocouple penetration probes
- LPK1 Liquid probe with 1m cable
- SCK1 Surface probe with 1m cable (4.7mm Dia)
- SCK2 Surface probe with 1m cable (3.2mm Dia)
- SCK3 Surface and liquid probe with 1m cable
- Thermocouple penetration probes: Hanna Instruments-766TR1, Hanna Instruments-766TR2, Hanna Instruments-766TR3, Hanna Instruments-766TR4
Fact
Proactive management of water systems provides best protection against the spread of legionella bacteria.
Legionella bacteria is spread by water droplet contamination. It is therefore virtually impossible to guarantee that the bacteria will not exist in a water system. But by adopting a rigorous, proactive approach with routine controls, the risk of an outbreak can be minimised.

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.