legionella sauermann

DHW network temperature monitoring

In accordance with the latest regulations on legionelle monitoring in domestic hot water (DHW) production, storage and distribution installations, our instruments measure the temperature of domestic hot water against this bacterium.

In all types of healthcare establishments and some public buildings, domestic hot water systems must protect users from legionellosis by maintaining a temperature above 50°C. This requires reliable measurements from instruments capable of providing accurate values in all conditions.

Parameters to be monitored

  • Domestic hot water temperature

Data logging & traceability

Data logging & traceability

Whether the regulations require daily or weekly monitoring, our stand-alone recorders and probes are an economical and effective way of carrying out your measurements, particularly at all risk points in the DHW network.

In healthcare establishments, measurements must be continuous. Loggers and their hook and loop contact probes are easy to install and provide accurate measurements. This data can be retrieved via a wireless network with our Tracklog models, or directly via a wired USB connection on the Kistock models.

read more about KTT 320

KTT 320


When easy wireless connection and a wide range of temperature readings are needed, the KTT 320 Thermocouple Data Logger is the key with its four thermocouple inputs.

Data Loggers are widely used in agriculture, industry and clinical laboratories to monitor a variety of parameters.

read more about KT - TrackLog

KT - TrackLog

LoRa®-Powered Temperature and Humidity Data Loggers

The KT TrackLog Data Logger records temperature and humidity with high accuracy and consistency throughout the entire life-cycle.

LoRa® is a Low Power Wide Area Network. It offers a mix of long range, low power consumption and secure data transmission that is making our world a Smart Planet.

General conditions of sale

legionella sauermann
Spot measurements

Spot measurements

Establishments such as medical centres, social centres, prisons, hotels and even campsites have a minimum obligation to measure the DHW temperature every month. For this, we recommend our portable thermometers fitted with a suitable contact probe.

Depending on your needs, you can opt for our TK 61 thermocouple thermometer, which can handle different types of contact probes. Or our Si-TT3, which connects wirelessly to your smartphone to save and send temperature reading reports (PDF, CSV, etc.).

read more about Si-TT3


Dual Input Thermometer K Thermocouple Temperature

The palm-sized Sauermann Si-TT3 dual input thermometer easily measures K thermocouple temperature.

read more about TK 61 / TK 62

TK 61 / TK 62

Thermocouple temperature

Kimo’s TK 61/62 digital thermometers are designed to accurately measure air temperature using an assortment of thermocouples.

legionella sauermann
Continuous Monitoring

Continuous Monitoring

In buildings equipped with BMS type monitoring or control systems, real-time monitoring of DHW temperature requires robust measuring equipment such as our stainless-steel probes. The readings from these fixed stations are then automated for the technical service teams.

Our Class A Pt100 temperature sensors offer a wide range of compatibility. Whether they are head-mounted (ST 50) or wired (SF 50), a standard 4-20mA converter enables them to communicate with all monitoring systems. And our thermowell makes it easy to check the probes without compromising the hermeticity of the installation.

read more about ST 50

ST 50

Temperature probe with standard head and resistive element

The ST 50 is a temperature sensor with a measuring range from from -50 to +250 °C (Pt100).

Resistance thermometers, also called resistance temperature detectors (RTDs), are sensors used to measure temperature.

read more about SF 50

SF 50

Cable temperature probe with resistive element

The SF 50 cable temperature probe with resistive element can measure from -50 to +260 °C (Pt100).

Resistance thermometers, also called resistance temperature detectors (RTDs), are sensors used to measure temperature.

legionella sauermann
Metrological Services

Metrological Services

Our metrology technicians are available to work on-site (France only) to check and calibrate your probes, recorders and thermometers of all makes. Our Montpon laboratories are also COFRAC ISO 17025 temperature accredited.

Depending on the sensitivity of your applications, you need to regularly check that your measuring equipment is working properly. With our know-how, the fruit of over 45 years of experience in the field of measurement excellence, our teams maintain the smooth running and accuracy of your instruments over time.

legionella sauermann


Our two main factories
Our customer service
Our metrology laboratories
Our Research & Development team

45 years of experience

45 years of experience

For over 45 years, the Sauermann Group has been designing, manufacturing and marketing products and services dedicated to the HVACR and industrial markets.