## [Measuring hygrometry in high-humidity environments](/en-GB/solutions/measuring-hygrometry-high-humidity-environments) ![hygrometry strong humidity](/sites/default/files/entityone_paragraphs/images/SOLUTION_Intro_468x468_6.png) ## Accurate and stable results Some pharmaceutical or research establishments, and some industries (paper, paint, food, etc.) operate in premises with high humidity. Measuring hygrometry in these environments requires specific probes. For these environments, Sauermann has appropriate solutions to ensure good hygrometry measurements in areas with high humidity, where the phenomenon of condensation is particularly disruptive and even dangerous for sensitive instrument components. ## Parameters to be monitored - **Hygrometry** - **Temperature** - **Psychrometric values** Choosing the right probe ## Choosing the right probe Temperature variations in environments with high humidity produce condensation. This residual water can interfere with measurements, so precautions need to be taken: choose the right type of temperature and humidity probes, and make sure they are protected. Our Si-PRO-U-I-100-H temperature and hygrometry probe is heated to prevent condensation forming on the sensitive element. Coupled with an external temperature sensor, it will accurately measure all psychrometric values. [All our transmitters](https://sauermanngroup.com/en-GB/measuring-instruments/transmitters) [ read more about Si-CPE320 ](/en-GB/measuring-instruments/transmitters/multi-parameter-transmitters/si-cpe320) [![compo Si-CPE320](/sites/default/files/styles/medium/public/images/COMPO-CPE320_1.png?itok=TL-BQCaX)](/en-GB/measuring-instruments/transmitters/multi-parameter-transmitters/si-cpe320) #### Si-CPE320 Multifunction panel transmitter For clean rooms applications, the Si-CPE320 transmitter is flush mountable to avoid disturbing the working environment. It is equipped with a highgrade stainless-steel waterproof front panel with an integrated touch screen. Equipped with the same technologies as the Si-C320, this panelmounted version provides state-of-the-art reliability and accuracy. In addition, measurements can be recorded and downloaded via the Sauermann Control application/software. **Si-CPE320:** Optional wireless communication module **Si-CPE320-W:** Integrated wireless communication module [ read more about Si-C320 ](/en-GB/measuring-instruments/transmitters/multi-parameter-transmitters/si-c320) [![compo Si-C320](/sites/default/files/styles/medium/public/images/COMPO-C320-3_1.png?itok=CVVFXIGz)](/en-GB/measuring-instruments/transmitters/multi-parameter-transmitters/si-c320) #### Si-C320 Multifunction transmitter For clean rooms, regulated environments and industrial VAC applications where a perfect regulation/monitoring of the air parameters is needed, our Si-C320 transmitters provide reliable measurements and allow you to achieve compliance with the strictest regulations. The Si-C320 housing is waterproof, rugged and resistant to vaporised hydrogen peroxide (VHP). It also features a colour touch screen for comprehensive viewing and advanced control of measurement parameters. In addition, measurements can be recorded and downloaded via the Sauermann Control application/software. [See all available models](https://sauermanngroup.com/sites/default/files/2024-03/Transmitters-Selection-Guide_2024-03_EN_0.pdf) [ read more about Heated humidity probe ](/en-GB/measuring-instruments/transmitters/probes/heated-humidity-probe) [![Si-PRO-U-I-100-H](/sites/default/files/styles/medium/public/images/27986_Si-PRO-U-I-100-H_Web.png?itok=yv53h3zl)](/en-GB/measuring-instruments/transmitters/probes/heated-humidity-probe) #### Heated humidity probe For demanding processes and climate control applications The Si-PRO-U-I-100-H is an interchangeable, heated hygrometry probe for Si-C320 transmitters and it has been designed for being used in environments where there is constant high humidity or rapid oscillanting humidity where the probe’s performance and its tolerance to pollutants are key. Stainless steel body and sintered filter. Length 100 mm (3.94’’), Ø 13 mm (0.51’’). It delivers dewpoint and frost point as a measurement. The relative humidity value, as well as the rest of psychrometric values can be calculated when the Si-PRO-T-150 temperature probe or an additional external temperature probe is connected to the Si-C320 transmitter using the Si-ACC-ETP adapter. Main applications: industrial processes, air handling units, drying processes, pharma production machines. *[Si-ACC-R2](https://sauermanngroup.com/en-INT/node/34904) probe cable for connection to class 320 transmitters is needed.* ![Kimo Class 320 labs](/sites/default/files/styles/max_1300x1300/public/images/SOLUTION_Produits01_Choix-sonde_699x393_5.png?itok=DfnsKdam) Positioning the probes ## Positioning the probes In a room, the hygrometry probe is installed in an open area where the air is not confined, away from heat sources, hot or cold air flows and sunlight. In ducts, the sensor should be placed horizontally 1/3 of the duct diameter. To avoid any heat loss through the body of the probe, it is essential to choose a probe of appropriate length. Sauermann offers hygrometry measurement probes in polycarbonate or stainless steel with lengths of 150 or 300 mm, which can be fitted with specific protection ends. [All our transmitters](https://sauermanngroup.com/en-GB/measuring-instruments/transmitters) [ read more about Si-C320 ](/en-GB/measuring-instruments/transmitters/multi-parameter-transmitters/si-c320) [![compo Si-C320](/sites/default/files/styles/medium/public/images/COMPO-C320-3_1.png?itok=CVVFXIGz)](/en-GB/measuring-instruments/transmitters/multi-parameter-transmitters/si-c320) #### Si-C320 Multifunction transmitter For clean rooms, regulated environments and industrial VAC applications where a perfect regulation/monitoring of the air parameters is needed, our Si-C320 transmitters provide reliable measurements and allow you to achieve compliance with the strictest regulations. The Si-C320 housing is waterproof, rugged and resistant to vaporised hydrogen peroxide (VHP). It also features a colour touch screen for comprehensive viewing and advanced control of measurement parameters. In addition, measurements can be recorded and downloaded via the Sauermann Control application/software. [See all available models](https://sauermanngroup.com/sites/default/files/2024-03/Transmitters-Selection-Guide_2024-03_EN_0.pdf) [ read more about TH 210-R ](/en-GB/measuring-instruments/transmitters/humidity-transmitters/th-210-r) [![th 210](/sites/default/files/styles/medium/public/images/th210.jpg?itok=MhQ7w_ad)](/en-GB/measuring-instruments/transmitters/humidity-transmitters/th-210-r) #### TH 210-R Humidity and temperature sensor Kimo’s TH 210-R measures humidity and temperature including 0 to 100 % RH and 0 to +50°C (ambient model), -20 to +80°C (pc remote probe), and -40 to +180°C (stainless steel remote probe). [ read more about Transmitters and probes accessories ](/en-GB/measuring-instruments/transmitters/accessories/transmitters-and-probes-accessories) [![Raccords de pression](/sites/default/files/styles/medium/public/images/accessories%20hygrometry%20transmitters_1.png?itok=pb7RbtPA)](/en-GB/measuring-instruments/transmitters/accessories/transmitters-and-probes-accessories) #### Transmitters and probes accessories Sauermann offers a wide range of accessories to support its Monostats, Class 110, 210, 310 and 320 transmitters and their probes, facilitating their installation in any situation: - Accessories for hygrometry transmitters (protection caps, salt solutions, sliding fittings and fixing flanges, protections) - Accessories for pressure transmitters (junctions, fittings, connection tubes) - Accessories for multifunction transmitters and flushmount multifunction transmitters (cable and extensions for interchangeable probes) - Software - Power supply (AC, DC) ![probe placement](/sites/default/files/styles/max_1300x1300/public/images/SOLUTION_Produits02_Positionnement-Sonde_699x393.png?itok=ccTgw7Ms) Probe protection ## Probe protection In harsh environments, hygrometry probes need to be protected. These protections prevent the risk of deterioration or premature drift of the probes' sensitive element, guaranteeing measurement accuracy and stability. Two types of probe protection predominate. Some specific end caps protect against dust and condensation, and for unheated probes positioned in an ambient environment (relative humidity >80% at over 30°C), ventilation must maintain a constant air flow to prevent condensation from forming. [All our transmitters](https://sauermanngroup.com/en-GB/measuring-instruments/transmitters) [ read more about TH 110 ](/en-GB/measuring-instruments/transmitters/humidity-transmitters/th-110) [![Th 110](/sites/default/files/styles/medium/public/images/th110.jpg?itok=YssY11vg)](/en-GB/measuring-instruments/transmitters/humidity-transmitters/th-110) #### TH 110 Humidity and temperature sensor Kimo’s TH 110 measures humidity and temperature from 5 to 95% RH and from 0 to 50°C or from -20 to +80°C. [ read more about CA 310 ](/en-GB/measuring-instruments/transmitters/multi-parameter-transmitters/ca-310) [![ca 310](/sites/default/files/styles/medium/public/images/ca310.jpg?itok=AQiWyXJS)](/en-GB/measuring-instruments/transmitters/multi-parameter-transmitters/ca-310) #### CA 310 Multifunction sensor with large electroluminescent display Kimo’s CA 310 contains a multifunction sensor with interchangeable probes and a large display. It can measure three parameters (for example humidity, temperature and pressure). [ read more about Transmitters and probes accessories ](/en-GB/measuring-instruments/transmitters/accessories/transmitters-and-probes-accessories) [![Raccords de pression](/sites/default/files/styles/medium/public/images/accessories%20hygrometry%20transmitters_1.png?itok=pb7RbtPA)](/en-GB/measuring-instruments/transmitters/accessories/transmitters-and-probes-accessories) #### Transmitters and probes accessories Sauermann offers a wide range of accessories to support its Monostats, Class 110, 210, 310 and 320 transmitters and their probes, facilitating their installation in any situation: - Accessories for hygrometry transmitters (protection caps, salt solutions, sliding fittings and fixing flanges, protections) - Accessories for pressure transmitters (junctions, fittings, connection tubes) - Accessories for multifunction transmitters and flushmount multifunction transmitters (cable and extensions for interchangeable probes) - Software - Power supply (AC, DC) ![probe protection](/sites/default/files/styles/max_1300x1300/public/images/SOLUTION_Produits03_Protection-Sondes_699x393.png?itok=JfpgY-R5) Metrological Services ## Metrological Services In production or storage areas, mapping in accordance with standard FD X15-140 identifies all the hot spots, cold spots and homogeneity of the building. This enables the best locations for measurements to be determined with pinpoint accuracy. In environments where measuring elements (housings, probes, etc.) are constantly subjected to high levels of physical stress, Sauermann's teams can help you carry out on-site periodic checks and calibration of your temperature and hygrometry sensors. [Ask for our services](https://sauermanngroup.com/en-GB/services) ![hygrometry services](/sites/default/files/styles/max_1300x1300/public/images/SOLUTION_Produits04_Metrologie_699x393_0.png?itok=_Ua9afzm) ## Products and accessories [ ![compo hygro probes](/sites/default/files/styles/event_thumb_max_200w/public/images/compo%20sondes%20hygro.png.webp?itok=sgqWYRQr) #### For class 320 transmitters ### Hygrometry probes Si-PRO-U-I-150 / Si-PRO-U-I-300 Hygrometry probe with stainless steel body with stainless steel filter. Autolocking connector. Si-PRO-U-I-150: probe... Read more ](/en-GB/measuring-instruments/transmitters/probes/hygrometry-probes-0) [ ![Si-PRO-T-150](/sites/default/files/styles/event_thumb_max_200w/public/images/SI-PRO-T-150.jpg.webp?itok=dY69bb4n) #### For class 320 transmitters ### Temperature probe Interchangeable temperature probe. Stainless steel sheath, dimensions: length 153 mm (6.02''), Ø 6 mm (0.24''). Main applications: VAC ductworks, Air... Read more ](/en-GB/measuring-instruments/transmitters/probes/temperature-probe) [ ![Raccords de pression](/sites/default/files/styles/event_thumb_max_200w/public/images/accessories%20hygrometry%20transmitters_1.png.webp?itok=gS4bNtkR) ### Transmitters and probes accessories Sauermann offers a wide range of accessories to support its Monostats, Class 110, 210, 310 and 320 transmitters and their probes, facilitating their... Read more ](/en-GB/measuring-instruments/transmitters/accessories/transmitters-and-probes-accessories) Blog posts [ ![Kimo Class 320](/sites/default/files/styles/insight_teaser/public/images/Kimo%20Class%20320.png?itok=UvOmdUYJ) September 11, 2023 New Class 320 transmitters: mastering indoor air monitoring The new Class 320 incorporates the latest technologies to offer professionals ultimate accuracy for compliance in their regulated environments. Instruments ](/en-GB/insights/new-class-320-transmitters-mastering-indoor-air-monitoring) [ ![workplace IAQ](/sites/default/files/styles/insight_teaser/public/images/thumb.jpg?itok=Ry5uqQVR) July 20, 2022 Offices: measuring air quality for maximum occupant health and comfort Workplaces are critical environments. So, it’s vital to monitor indoor air quality since it affects occupant comfort, health and productivity. Instruments ](/en-GB/insights/offices-measuring-air-quality-maximum-occupant-health-and-comfort) [ ![ACR CO2 TRA](/sites/default/files/styles/insight_teaser/public/images/CO2-600.png?itok=SIVP6uW8) April 19, 2022 Using CO2 concentration to measure air change rate New health and safety rules recommend checking the air change rate by measuring the CO2 concentration against a target value. Here, we explain why and how it’s done. Instruments ](/en-GB/insights/using-co2-concentration-measure-air-change-rate) ![In-House](/sites/default/files/styles/thumbnail/public/images/picto2_0_1.png?itok=Uj4MBd0J) ## In-House Our two main factories Our customer service Our metrology laboratories Our Research & Development team ![45 years of experience](/sites/default/files/styles/thumbnail/public/images/45Years_EN_0_3.png?itok=lV19Ew0X) ## 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. [Information, quotes: I'd like to be contacted by phone](/en-GB/contact)