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TPI 343 Kit 3 Legionnaires Temp Kit

The TPI 343 Legionnaires’ Temperature Kit has everything needed to detect temperature conditions in water systems that may be conducive to legionella bacteria and pose an increased risk of Legionnaires’ disease.

Next Day Delivery (subject to availability)

£94.95 exc. VAT £113.94 inc. VAT £126.00 inc. VAT
  • -50˚C and 1350˚C
  • Type K Connection
  • Dual Input
  • Long Battery Life
  • Hold Function
  • Min/Max Function
  • FreeDelivery
  • 30DayMoneyBack
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TPI 343 Kit 3 Legionnaires Temp Kit

The TPI 343 Legionnaires’ Temperature Kit has everything needed to detect temperature conditions in water systems that may be conducive to legionella bacteria and pose an increased risk of Legionnaires’ disease.

The main instrument in the kit is the TPI 343 Dual Input Differential Thermometer which can display temperatures from two probes at once as well as the differential temperature between the two values. The thermometer itself has a measurement range of -50˚C to 1350˚C depending on the probe and also boasts min/max recording, data hold, a digital filter and an auto-calibration function.

A supplied FK11M immersion probe is a vital component of the TPI 343 Legionnaires’ Kit as it is ideal for checking temperatures in semi-solids and liquids. With a temperature range of -50˚C to 250˚C, it covers the risk zone for legionella bacteria and it has a 1m lead length for added practicality. The TPI 343 Legionnaires’ Kit also contains a CK11M surface temperature probe which is ideal for taking contact temperatures on water pipes. It is fully waterproof and has a temperature range of -50˚C to 250˚C.

Two GK11M beaded air probes provide an excellent option for measuring temperature in air vents and in the room for further safeguarding against legionella-friendly conditions. The thermometer and all probes are supplied in a handy soft carry case and a three-year warranty covers all the components. A battery life of 200 hours makes the kit suitable for use around large sites and it is an excellent, good value kit for testing for legionella-friendly conditions.

The TPI 343 Is Supplied With:

  • TPI 343 Dual Input Thermometer
  • FK11M Immersion Probe
  • CK11M Surface Probe
  • 2x GK11M Air (Beaded) Probes
  • A901 Soft Carry Case

Key Features:

  • Auto Field Calibrate in less than 10 seconds in ice water to achieve +/- 1°F system (tester & probe) accuracy within 30°F to 120°F temperature range
  • Temp1, Temp2, Temp1-Temp2 display modes
  • Min / Max Record
  • Auto Resolution (0.1° / 1°)
  • °C/°F Selectable
  • Hold feature freezes reading on display
  • Auto Off
  • Protective rubber boot
  • Easy to read LCD display

About TPI Europe

Since 1997, TPI has been striving to offer the latest technology at the most affordable price to technicians, contractors, engineers and others seeking value-based test and measurement instruments. Our mission is to become the leading independent manufacturer and supplier of low cost high-performance industrial instrumentation.
Headquartered in the heart of the “Silicon Forest” in Beaverton, Oregon, TPI combines innovation, performance, customer service and high-value in products which include: Vibration, Combustion, Pressure (manometers), Temperature, Combustible gas, Digital Multimeters, Clamp Meters, IAQ, specialty test and measurement instruments, and a wide range of accessories.

TPI 343 Kit 3 Legionnaires Temp Kit

Input Dual K-type thermocouple
 Temperature Range -50°C to 1,350°C (-58°F to 2,462°F)
 Display 0.1°C/°F : up to 999.9°C/°F
1.0°C/°F : above 1,000°C/F
 Accuracy ±3°F(±1.6°C) from:
-58°F to 32°F (-50°C to 0°C)±0.3% of rdg +1.8°F (1°C) from:
32°F to 1,100°F (0°C to 600°C)±0.4% of rdg +1.8°F (1°C) from:
1,100°F to 2,462°F (600°C to 1,350°C)
 Update Rate 2.5 times/second
 Key Buttons On/Off, T1, T2, T1-T2, °C, °F, HOLD
 Field Calibration By key operation
 Operating Temperature 32°F to 122°F (0°C to 50°C)
 Storage Temperature -13°F to 158°F (-25°C to 70°C)
 Battery 9V
 Battery Life 200 hours (Alkaline)

Orders requiring calibration 

Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received PM and requiring
calibration may on occasion miss dispatch that day, according to the complexity of the calibration. Be assured they will ship on the next dispatch
this in most cases should not add more than 24 hours to your delivery.

Bank/Public Holidays

Predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope 
of our dispatch and subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order.

*UK Mainland (Temporarily revised June 2020)

Please note that regrettably, we have had to realign our delivery service options to those available from our carriers.
During the current situation surrounding the effects of the Coronavirus pandemic, logistics from every company are under immense pressure to deliver goods on time.
We have taken the decision to temporarily limit our services rather than let our customers down.
We hope you will understand our position on this and we apologise unreservedly for the inconvenience we know this will cause.
We look forward to restoring our full delivery service schedule just as soon as we are able.

Standard FREE 1-2 Day Courier Delivery – UK Mainland only - Zones A & B

Included in the price for all orders over £75.00 (exc vat). Sent using express courier, delivered within 1-2 working days from the date of your order, subject to availability.


Next Day Anytime Delivery (Excluding Saturday & Sunday) – UK Mainland only - Zones A & B
Sent by express courier, delivered next day (excluding weekends) from the date of your order, subject to availability.


Orders must be placed before 3:00pm for a qualifying next day delivery and a telephone number supplied, subject to availability.

New Postage Map Sept 2018>

Delivery Surcharges

Because of the high cost of carriage, we need to apply a surcharge on all deliveries made in the following regions bringing the carriage charges to:

  • Zones A & B  - Mainland delivery rates apply. 
  • Zone C - Scottish Highlands (Charges are calculated at the checkout).
  • Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout).
  • Zone E - Northern Ireland (Charges are calculated at the checkout).
  • Zone F - Republic of Ireland (Charges are calculated at the checkout).

Offshore Services

All offshore deliveries are a 2 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.

International Delivery

International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at


All export inquiries should be directed to the export division before placement of order.

If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to purchase your items.
All stated prices are subject to VAT at the current rate where applicable E&OA