HG808 Sereris
The HG808 Series by HENGKO offers a comprehensive line of industrial-grade transmitters designed to deliver accurate, stable, and long-term reliable measurements of temperature, humidity, and dew point across a wide range of challenging environments.
Whether facing extreme heat, high humidity, corrosive gases, or precision monitoring demands, HG808 has a solution built for your application.
| Modèle | By Application Condition | Key Features |
| 1. Temperature & Humidity Transmitter | ||
| HG808-T | Continuous High-temperature environments (kilns, ovens, flue gas) | – Measures up to 180°C ; – Stainless steel probe ; – Long-term stability |
| HG808-H | High Humidity Areas (cleanrooms, greenhouses, pools) for Continuous High Humidity Environment | – Up to 85-98% RH; – Anti-condensation ; – Strong corrosion resistance -Works stably and accurately in >85% humidity long-term |
| HG808-C | Precision Measurement Applications (labs, pharma, food storage) | – ±1.5%RH Hgh Accuracy; – Stable performance; – Wide temp/RH range |
| HG808-F | Corrosive/ Chemical Environments (pharma, battery plants) | – Anti-acid/alkali design; – IP65 housing ; – Suitable for disinfectants |
| 2. Dew Point Transmitter | ||
| HG808-D | Normal Temperature Environment Dew Point Measurement (dry gas systems, glove boxes) | – Dew point & temp output ; – 4–20mA interface ; – Accurate in dry zones |
| HG808-A | Ultra high temperature + Point de rosée measurement and moisture-sensitive areas | – Up to 180°C dew point ; – Robust & interference-resistant |
HENGKO propose une large gamme de capteurs industriels de température et d'humidité adaptés aux différents besoins de surveillance, allant de sondes en acier inoxydable à transmetteurs de point de rosée and as following 6 kinds of temperature and humidity monitor devices solution. Our focus is on providing accurate, reliable, and long-lasting sensors, making them perfect for a diverse array of applications. Here List our HG808 series, please check details as following.
Corrosion-Resistant Temperature & Humidity Transmitter
Withstands harsh chemical exposure—ideal for pharmaceutical cleanrooms, chemical processing, battery plants, and food-grade environments.
Anti-acid, alkali, disinfectant, and reagent corrosion
Stainless steel housing, IP65 protection, and modular probe design
Accurate RH ±2.5%, Temp ±0.2°C @20°C
HG808 also offers specialized dew point monitoring solutions tailored for challenging industrial environments — including high temperature, high humidity, corrosive conditions, and chemical exposure.
Explore the models below to select the right humidity transmitter for your specific application needs.
Modèle | Temperature Range (°C) | Humidity Range (% RH) | Dew Point Range (°C) | Temperature Accuracy (Temperature/Humidity/Dew Point) | Special Features | Applications |
HG808-T Series ( High Temperature Transmitter ) | -40 to +200℃ | 0-100%RH | N/A | ±0.1°C (@85℃) / ±2%RH (@20℃, 10-90%RH) | Ultra-high temperature resistant sensing element, 316L stainless steel probe. Maintains good humidity collection performance even at high temperatures between 100°C and 200°C. | Collecting humidity data from high-temperature gases in various applications like furnace kilns, high-temperature ovens, and coking gas pipelines. |
HG808-H Series ( High Humidity Transmitter ) | -40 to +100℃ | 0-100%RH | N/A | ±0.1°C (@20℃) / ±2%RH (@20℃, 10-90%RH) | Features high wet humidity sensing with excellent corrosion resistance. Employs a robust cast aluminum housing and a stainless steel sensor assembly for durability. Maximum humidity range extends up to 98% RH max. (Normal advice 40-95% RH ) | Suitable for use in industrial environments with high humidity levels, particularly in applications with relative humidity ranging from 90% to 100%. |
HG808-C Series ( Precision Transmitter) | -40 to +150℃ | 0-100%RH | N/A | ±0.1°C (@20℃) /± 1.5%RH (@20℃, 10-90%RH) | Provides long-term stable and high-accuracy measurement performance across a wide measurement range (0-100% RH, -40°C to +150°C). Employs high-quality sensors and advanced calibration technology for sustained precision. | Ideal for use in various fields requiring precise measurements, including biopharmaceuticals, precision machinery processing, laboratory research, food processing, and storage. |
HG808-F Series ( NEW) | -40 to +120℃ | 0-100%RH | N/A | ±0.2°C (@20℃) /± 2.5%RH (@20℃, 10-90%RH) | Corrosion-Resistant Temperature & Humidity Transmitter Withstands harsh chemical exposure | ideal for pharmaceutical cleanrooms, chemical processing, battery plants, and food-grade environments. |
HG808-A Series (Ultra High Temp Dew Point Meter) | -80 to +180℃ | N/A | -20 to +100℃ | ±3°C Td | Designed specifically for measuring dew point in high-temperature and dry environments. Features a robust cast aluminum housing and stainless steel sensor assembly for accurate measurements at temperatures up to 190°C. | Ideal for dew point measurement in challenging 190℃ high-temperature and dry environments. |
HG808-D Series (Inline Dew Point Meter) | -40 to +90℃ | N/A | -60 to +90℃ | ±2°C Td | Utilizes a high-quality moisture-sensitive element and advanced calibration techniques to deliver accurate dew point transmitter. Offers consistent ±2°C point de rosée accuracy within a dew point range of -60°C to +90°C. | Suitable for industrial, non-harsh environments where precise humidity control is crucial. Applicable in areas like lithium battery production, semiconductor applications, and glove boxes for microscopic water detection. |
HG808-G Series ( Inline Dew Point Meter ) | -20 to +60℃ | N/A | -60 to +20℃ | ±3°C Td | Designed to operate in extremely dry environments and measure moisture in gases. Features a dew point range extending down to -40°C, making it suitable for applications requiring strict humidity control. | Measures low dew point values in industrial settings demanding precise humidity management. |
Nous proposons 6 types de sondes pour le transmetteur d'humidité HG808, chaque type étant disponible en version A et B, ce qui donne un total de 12 sondes pour diverses options d'application.
0A#
1A#
3A#
5A#
6A#
8A#
0B#
1B#
3B#
5B#
6B#
8B#
Connecteur de sonde en acier inoxydable M20 à filetage hexagonal
G1/2 Connecteur de sonde en acier inoxydable à filetage hexagonal
NTP1/2 Connecteur de sonde en acier inoxydable à filetage hexagonal
M27 Connecteur de sonde en acier inoxydable à filetage hexagonal
Connecteur de sonde en acier inoxydable à bride M20
HENGKO, as a leading factory and OEM provider, offers 6 types of humidity transmitters, sensors, and meters with various probe options. We specialize in delivering the best temperature and humidity monitoring solutions for diverse industrial applications, ensuring reliability and customization to meet specific needs.
HENGKO is a professional supplier in industrial temperature and humidity sensor solutions, with a reputation for unique design and excellent performance.
Our temperature and humidity transmitters and sensors are utilized across various industries, such as food and beverage, pharmaceuticals, manufacturing, and environmental monitoring, delivering reliable and accurate measurements essential for operational success.
You can easy find the best temperature and humidity solutions by HENGKO’s 10 years of technical expertise and comprehensive range of humidity and dew point products for some special industrial monitor conditions.
You will get much lower and competitive price due to our extremely cost-effective control and factory supply and free OEM and ODM Service
You will always meet the ever-changing market needs with our keep-upgrading humidity transmitter products.
Vous pouvez personnaliser entièrement un produit unique de capteur de point de rosée basé sur notre série de transmetteurs de point de rosée brevetés et conçus par nos soins.
Vous bénéficierez d'un soutien marketing solide pour vous aider à vendre vos produits avec succès. Les supports matériels comprennent : des images de produits en haute résolution, des vidéos à effet 3d, et bien plus encore.
If you’re keen on collaborating with HENGKO as an Sales Distributor or Agent for our Temperature and Humidity Sensor Products,
we warmly invite you to contact us to discuss the specifics. Many exclusive opportunities await you.
The HG808 series is engineered with robust materials like 316L stainless steel probes and cast aluminum housings, providing high resistance to heat, humidity, and chemical exposure. Models like HG808-T and HG808-A are specifically built for extreme temperatures up to 200°C and dry, high-temperature dew point environments, making them ideal for kilns, ovens, coking gas pipelines, and more.
Yes. The HG808-T series can operate from -40°C to +200°C and is designed with an ultra-high-temperature-resistant sensor. It maintains stable humidity measurements even between 100°C to 200°C. The HG808-A model also performs dew point monitoring up to 180°C, ideal for dry high-temp applications.
These models are widely used in:
Furnace kilns and incinerators
High-temp ovens and drying systems
Steel and chemical processing plants
Gas pipelines for coking or synthesis
Power generation facilities requiring dew point control
Accuracy is a core strength:
HG808-T: ±0.1°C (@85°C), ±2%RH
HG808-A: ±3°C for dew point across -20 to +100°C
This high accuracy ensures precise monitoring, even in dynamic environments.
For environments where the air temperature exceeds 150°C, traditional temperature and humidity sensors often fail due to thermal drift or sensor degradation. The Série HG808-T is specifically engineered for such cases, supporting up to 200°C and equipped with a 316L stainless steel probe that withstands thermal stress and provides stable humidity collection even between 100°C and 200°C.
Typical use cases include:
Industrial kilns (ceramics, steel, glass)
High-temp drying ovens
Flue gas exhaust pipelines in power or chemical plants
In persistently wet or saturated air environments—such as greenhouses, swimming pools, fermentation chambers, or cleanrooms—accuracy and anti-condensation capability are critical. The HG808-H Series is designed with:
A robust stainless steel sensor housing
Anti-condensation coating
High humidity tolerance up to 98% RH
Unlike standard RH sensors that degrade or saturate near 95% RH, the HG808-H provides stable readings in these tough environments.
Dew point is the temperature at which air becomes saturated and condensation begins. In very dry or pressurized gas systems, RH becomes less meaningful and dew point is the key metric.
You should choose dew point transmitters like:
HG808-A Series: for high-temperature and dry applications up to 190°C
HG808-D/G Series: for ultra-low dew point detection (down to -60°C), ideal for:
Glove boxes
Lithium battery production
Semiconductor packaging
Industrial dry air systems
Dew point measurement offers more meaningful, pressure-independent metrics in these scenarios.
Chemical-resistant monitoring is critical in pharmaceutical, chemical processing, and battery manufacturing. The HG808-F Series is built for such use:
Operates at -40 to +120°C and 0–100% RH
Withstands corrosive environments with a chemical-resistant sensor enclosure
Ideal for applications like:
Cleanrooms (ISO 7–9)
Battery production (e.g., lithium or NiMH)
Chemical labs or solvent storage areas
Choose the HG808-C Series for high accuracy and long-term stability:
Accuracy: ±0.1°C, ±1.5% RH
Temperature range: -40°C to +150°C
Ideal for:
Biopharmaceutical manufacturing
Calibration labs
Food & vaccine storage (requiring 24/7 monitoring)
Semiconductor packaging rooms
The model uses advanced calibration algorithms and low-drift sensors suitable for regulated industries.
HG808-D/G: Inline installation within closed systems like compressed air lines or glove boxes; ideal for low dew point (< -20°C) and precise process control.
HG808-A: External probe, suited for open or semi-open high-temp systems, such as heated drying chambers or hot gas ducts, where dew point indicates dryness or risk of condensation.
In battery plants, drying rooms require both low humidity and corrosion resistance. Recommended options:
HG808-F: For general drying room humidity monitoring with chemical exposure
HG808-D: For inline dew point monitoring, especially in inert gas or vacuum systems
HG808-G: For ultra-dry, low-temp gas streams
Look for dew point range below -20°C and fast response time in these scenarios.
Typically no, as sensors that handle extreme temperatures (like HG808-T, up to 200°C) are not suitable for saturated humidity at those temps. Similarly, high humidity sensors (like HG808-H) are optimized for moderate temperatures up to 100°C.
Recommendation: Evaluate your application priorities—if temperature is extreme, choose HG808-T and disregard RH accuracy. For wet high-humidity use, choose HG808-H and operate within the specified range.
Here are some best practices:
Choose models with industrial-grade sensors (HG808 series uses sensors rated for stability and drift resistance)
Ensure proper shielding or enclosures if exposed to corrosive vapors or condensation
Plan for annual recalibration in regulated environments (e.g., pharma or food industries)
Utilisation RS485/Modbus integration for remote diagnostics and maintenance
Yes. HENGKO supports full OEM customization, including:
Custom sensor probe lengths (up to 1 meter)
Threaded or flanged mounts
Custom output signals
Enhanced IP67/IP65-rated housings
Special calibration ranges or field-specific enclosures
These are often required for system integrators or equipment manufacturers in HVAC, gas analysis, or automation industries.
Contactez HENGKO dès aujourd'hui pour toute question concernant les capteurs de température et d'humidité, les transmetteurs et les solutions.
Dans l'environnement exigeant de l'industrie papetière, l'humidité élevée n'est pas seulement courante, elle est aussi très importante.
Introduction Dans le monde très sensible de la fabrication des semi-conducteurs, où même une fluctuation environnementale mineure peut avoir des conséquences négatives sur la qualité de l'air, il est important de prendre des mesures pour réduire les risques.
À l'ère moderne des avancées technologiques, la demande de batteries, en particulier de batteries lithium-ion, est montée en flèche. Ces
Introduction Les capteurs de température et d'humidité jouent un rôle crucial dans diverses industries, notamment dans le domaine de la surveillance de l'environnement,
Introduction Le boîtier du capteur est essentiel pour protéger les capteurs des défis environnementaux tels que l'humidité, la poussière et la pollution.
Contactez notre équipe d'experts pour une assistance personnalisée et nous vous fournirons rapidement les meilleures solutions de transmetteurs et de capteurs de température et d'humidité adaptées à vos besoins spécifiques.
Laissez-nous vous expliquer pourquoi vous devriez choisir un transmetteur de point de rosée
de HENGKO
La réponse est simple : HENGKO est différent.
Dans l'environnement exigeant de l'industrie papetière, une humidité élevée n'est pas seulement courante, elle est inévitable. De l'étape de la fabrication de la pâte à papier au processus de séchage, en passant par la fabrication de la pâte à papier, l'humidité est inévitable.
Dans l'environnement exigeant de l'industrie de la fabrication du papier, il est nécessaire de disposer d'une grande capacité de production.
Introduction Dans le monde très sensible de la fabrication des semi-conducteurs, où les
À l'ère moderne des avancées technologiques, la demande en matière de
HENGKO est un important fournisseur de solutions de contrôle de la température et de l'humidité pour diverses industries, spécialisé dans la fabrication de transmetteurs et de capteurs de température et d'humidité de pointe.
French 
English 
Spanish 
Portuguese 
Russian 
German 
Italian 
Indonesian 
Japanese 
Korean 
Romanian 
Lithuanian 
Polish 
Ukrainian 
Greek 
Hungarian 
Swedish