Taupunktsensor
The Veswe Dew Point Sensor delivers accurate measurements for compressed air and gas systems, directly extending equipment service life and reducing operational maintenance costs. Ideal for factory pipeline installation, it ensures optimal air quality and system efficiency.
Available in two reliable models, VRS-DEW-N01-S-EX and VRS-DEW-N01-2-EX, this versatile sensor excels in both outdoor/meteorological/agricultural environments and industrial settings. It provides precise real-time monitoring for air compressors, refrigerated dryers, desiccant dryers, and air storage tanks, making it the trusted choice for moisture control across diverse applications.
- Model: VRS-DEW-N01-2-&-EX/ VRS-DEW-N01-S-EX
- MOQ: 1 STK.
- Liefertermin: innerhalb von 24 Stunden
- Jetzt Preis anfragen
Anfragen: E-Mail: contact@veswe.com | WhatsApp: +8613418148929
The Guardian Against Moisture – Veswe Dew Point Sensor
Imagine a device that sees the invisible threat of condensation before it forms. This is the power of the Veswe Dew Point Sensor. Designed for precision environmental monitoring, this unit measures three critical parameters simultaneously: Air Relative Humidity, Dew Point Temperature, and Ambient Temperature. Housed in a sleek white ABS/PC enclosure with mounting flanges and an integrated vented probe, this dew point sensor is built for both controlled labs and harsh industrial sites. Whether you call it a dewpoint meter or a temperature and humidity transmitter, its mission is clear: to provide the data you need to protect your assets. From pharmaceutical storage to HVAC optimization, this Dew Point Sensor is your first line of defense against moisture-related failures.
Built for the Elements – IP65 Protection-Rated Enclosure
Nature doesn’t always cooperate, but your Dew Point Sensor should. Our unit features a high-protection housing rated IP65, ensuring reliable operation even in rain, snow, or dusty environments. Picture the device sitting on an icy surface, water splashing around it, yet inside, the dew point transmitter continues to deliver flawless data. This weatherproof durability makes it perfect for outdoor installations like greenhouses, cold storage yards, or rooftop HVAC units. Unlike fragile lab instruments, this dew point monitor is ready for the real world. When you deploy a Veswe Dew Point Sensor outdoors, you’re choosing resilience you can trust.
The Brain Behind the Data – High-Precision Premium Chip
Accuracy isn’t luck; it’s engineering. At the heart of every Veswe Dew Point Sensor lies the 4th-generation SHT4X series chip. This advanced semiconductor delivers higher accuracy, a wider measurement range, and performance comparable to top-tier SHT45 grade sensors. Visualize a glowing microchip on a circuit board, symbolizing the industrial-grade stability within. This dewpoint sensor ensures reliable data even in fluctuating thermal and humidity conditions. Whether you’re tracking subtle changes in a cleanroom or extreme shifts in a factory, this dew point measurement instrument provides the precision you demand. Trust the Dew Point Sensor powered by cutting-edge technology.
earless in Humidity – Waterproof & Moisture-Resistant Probe
Condensation is the enemy of most sensors, but not ours. Our Dew Point Sensor is engineered to withstand extreme moisture. Even if the probe is submerged in boiling water, it remains undamaged. Imagine the sensor partially immersed in water, yet still transmitting accurate readings. This robustness is critical for applications like food processing, pharmaceutical labs, or tropical climates where dew formation is common. While other dew point measuring devices might fail or drift, this Veswe Dew Point Sensor thrives. It’s the rugged warrior that protects your process, no matter how wet the environment gets.
Connect to Your World – Standard ModBus Protocol
Integration should be seamless, not a headache. Our Dew Point Sensor uses a standard RS485 communication interface with configurable address and baud rate, supporting transmission distances up to 2000 meters. It connects effortlessly to major industrial platforms like Kunlun Tongtai (HMI/SCADA), Sunway, and generic third-party systems. No proprietary drivers needed. Whether you’re building a massive automation network or a small local loop, this dew point transmitter speaks the language of your system. It’s the ideal dewpoint meter for long-distance networking, ensuring your dewpoint measurement data reaches the control room without loss. Connect your world with a Dew Point Sensor that plays well with others.
Quality in the Details – Precision Engineering Highlights
Greatness lies in the details. Our Dew Point Sensor showcases four key design features:
High-Density Shell + Waterproof Sealing Strip: IP67-rated housing with internal multi-channel sealing for harsh environments.
PG7 Locking Gland: IP68-rated cable entry enhances waterproofing and anti-corrosion.
Anti-Interference Mode: Circuitry immune to severe electromagnetic interference (EMI).
Triple-Conformal Coating on PCB: Protects against moisture, salt fog, and mold growth.
From the corrosion-resistant shell to the tool-free installation, every aspect of this Dew Point Sensor is engineered for practicality and performance. It’s not just a dew point sensor for compressed air; it’s a masterpiece of industrial design. Choose the Veswe Dew Point Sensor and see the difference quality makes.
Local Control – On-Site Network & Free Software
Not everyone needs the cloud, and that’s okay. Our Dew Point Sensor supports a wired local monitoring solution using the RS485 bus. Connect multiple transmitters in parallel to a USB-to-RS485 converter, plug into a PC, and run our free monitoring software. Get real-time temp/humidity display, alarms, historical queries, and data exports instantly. This plug-and-play setup is perfect for small facilities wanting local control without licensing costs. It’s a dew point measurement instrument system that respects your budget and your autonomy. With Veswe, you get flexibility in how you monitor your dewpoint measurement.
Global Oversight – Free Environmental Monitoring Cloud Platform
For larger deployments, our Dew Point Sensor connects to the Veswe Environmental Monitoring Cloud Platform. Devices send data via a monitoring host to a secure cloud database, accessible anytime via mobile or PC. The dashboard offers real-time data display, over-limit alerts, historical data query, data export, and SMS/email notifications. Capable of supporting over 50,000 devices, this platform turns individual dew point sensor readings into actionable intelligence. Whether for chain stores, warehouse networks, or municipal infrastructure, this ecosystem ensures centralized oversight. Your Dew Point Sensor is now part of a global brain, protecting your assets from anywhere on Earth.
About - Dew Point Sensor
Dew point is the lowest temperature at which water vapor is allowed to remain in a gas without condensing into a liquid. As the temperature of air or gas decreases, its capacity to hold water vapor decreases until it becomes fully saturated, and below this dew point temperature, water droplets will begin to form. Typically, a dew point sensor is installed downstream of a dryer to provide information when the dryer starts to malfunction and moist air enters the distribution system. When the dew point reaches a preset value, an alarm is triggered, notifying professionals to take swift action. This can save significant costs resulting from damage and production losses caused by water ingress.
VRS-DEW-N01-S-EX
This dew point sensor features a 304 stainless steel housing, with a fully sealed cable outlet for waterproof protection. It achieves an IP65 protection rating, ensuring stable operation even in harsh conditions such as high temperature or high humidity.
The internal circuit uses an industrial grade microprocessor and a high accuracy temperature sensor to guarantee excellent performance.
With a sleek appearance and compact dimensions, the dew point sensor is equipped with a G1/2 threaded interface, allowing easy installation on various mechanical pipelines. It supports standard Modbus protocol and outputs through RS485, making it suitable for secondary development.
Parameter
| Power Supply | DC 10-30V | |
| Max. Power Consumption | 0.4W | |
| Genauigkeit | Dew Point | ±0.8°C (25°C) |
| Temperatur | ±0.4℃ (25℃) | |
| Betriebsumgebung | -40℃~+60℃, 0%RH~95%RH (Non Condensation) | |
| Dew Point Range | -30℃-100℃ | |
| Dew Point Resolution | 0.1℃ | |
| Temperature Resolution | 0.1℃ | |
| Refresh Time | 1s | |
| Long-term Stability | Temperatur | ≤0.1℃/y |
| Response Time | Temperatur | ≤25s(1m/s Wind Speed) |
| Output Signal | RS485(ModBus Protocol) | |
| Einrichtung | G1/2 Thread Installation | |
VRS-DEW-N01-2-&-EX
This dew point sensor integrates an internal temperature and humidity sensor, calculating the dew point by measuring the ambient temperature and relative humidity. It can therefore output three parameters: temperature, relative humidity, and dew point. Designed for wall-mounted installation, it is suitable for measuring atmospheric dew point. The housing is fully waterproofed and rated IP65, ensuring long-term durability.
To meet the requirements of different application environments, we offer a variety of probe options, such as PE probes, waterproof probes, metal probes, high-temperature probes and so on. This dew point sensor is widely used in applications that require reliable monitoring of dew point temperature and ambient temperature and humidity.
Parameter
| Power Supply | DC 10-30V | |
| Max. Power Consumption | 0.4W | |
| Genauigkeit | Relative Humidity | ±3%RH(60%RH,25℃) |
| Dew Point | ±1℃（25℃） | |
| Temperatur | ±0.5℃（25℃） | |
| Betriebsumgebung | -40℃~+80℃, 0%RH~95%RH (Non-condensing) | |
| Dew point temperature range | -30℃~100℃ | |
| Dew Point Resolution | 0.1℃ | |
| Temperature Resolution | 0.1℃ | |
| Humidity Resolution | 0.1%RH | |
| Refresh Time | 1s | |
| Long-term Stability | Relative Humidity | ≤1%RH/y |
| Temperatur | ≤0.1℃/y | |
| Response Time | Relative Humidity | ≤8s(1m/s Wind Speed) |
| Temperatur | ≤25s(1m/s Wind Speed) | |
| Output Signal | RS485(ModBus Protocol) | |
FAQs - Dew Point Sensor
Dew point is the temperature at which the water vapor in the air becomes saturated. That is, when the air cools to this temperature, water vapor begins to condense into liquid water.
Relative humidity indicates the percentage of water vapor currently in the air compared to the saturated water vapor amount at the same temperature (0-100%).
Their relationship is: dew point reflects the absolute moisture content and is independent of temperature (under a given water vapor content), while RH changes significantly with air temperature (the same amount of water vapor will result in lower RH at higher temperatures). Therefore, in many control/monitoring applications, dew point is more stable and intuitive in indicating the moisture content of the air than RH.
Dew point is based on the formation of liquid water, while frost point is based on the direct deposition of ice. When the ambient temperature is below 0 °C, water vapor may actually form ice directly on a surface, and in this case the corresponding “saturation pressure” is with respect to ice rather than liquid water. For the same water vapor partial pressure, the frost point temperature is usually slightly higher than the dew point corresponding to a liquid water surface (the difference must be calculated using the precise relationship between the saturation vapor pressures of the ice/water phases). In engineering applications, when the temperature is below 0 °C, it should be clearly specified whether the “frost point” or “dew point” standard is being used.
Industrial compressed air and gas systems can be directly damaged due to water contamination or subsequent freezing and expansion of water. The presence of water vapor in the air or gas can also affect process or product quality. It is common practice to remove water contamination through filters and drying systems, but due to the dew point (and potential destructive condensation) varying with pressure changes, the risk of damage to the entire factory can also differ.
- Medical and Respiratory Air
When it comes to most regulations for medical gases and respiratory air, dew point monitoring is necessary to ensure compliance and safe breathing conditions for everyone from patients to firefighters. - Plastic Drying
Maintaining adequate dryer performance prevents material waste and production downtime while ensuring product quality. - Food and Pharmaceutical Industry
Many applications in the food and pharmaceutical industry use compressed air. Standard applications include coating quality control, filling, and packaging. - Rail Transportation
Brakes, doors, and air conditioning systems on trains, buses, and other public transportation vehicles rely on dew point measurements in compressed air to ensure safety and reliability.
Dew point is typically measured using a dew point sensor or hygrometer. There are several methods to measure dew point, including: Chilled Mirror Hygrometer, Capacitive Hygrometer, Resistive Hygrometer, Infrared (IR) Hygrometer, Psychrometric Charts, Electronic Sensors.
Dew point sensor is a specialized instrument used to measure the dew point temperature in a gas or air mixture.
Working principle of dew point sensor: When the ambient temperature falls below the dew point, water vapor in the air condenses into liquid. Conversely, when the ambient temperature is above the dew point, the air contains saturated water vapor and forms dewdrops. In an environment with a relative humidity of 100%, the water vapor content in the air is directly proportional to the humidity of the ambient air.
The data sheet for the dew point sensor will provide you with the accuracy specifications. This is usually given as a range, for example ±0.8°C. This means that the sensor accuracy is expected to be within plus or minus 0.8 °C of the actual dew point.
Dew point is an absolute measurement, while humidity is a percentage. Therefore, dew point is considered a more accurate method of measuring air humidity and comfort. Additionally, humidity depends on air temperature, while dew point does not.
The dryness of compressed air is often expressed as “pressure dew point.” System characteristics: high temperature, high pressure, and the presence of oil, particles, or chemical contaminants. Key selection points:
- Messbereich: Industrial compressed air often requires specifications such as -40 °C DP or -70 °C DP, confirm the target dew point.
- Contamination resistance: Choose sensors with filtration/sample interfaces, external filters, or pre-treatment (condensate separation, oil mist filtration).
- Pressure range/isolation: If the dew point sensor cannot withstand high pressure, use a sampling pressure-reducing system or a sensing probe with pressure isolation.
- Output and interface: 4-20 mA and RS485 are common, facilitating integration with PLC or monitoring systems.
- Calibration and maintenance cycle: In high-contamination environments, shorten the calibration interval; it is recommended to retain replaceable probes or spare parts.
- Avoid direct sunlight, heat sources, or strong cold air, install the sensor in a representative airflow location.
- Keep the measurement point temperature stable and avoid sudden changes. When measuring inside pipelines, use an appropriately sized probe and an anti-vibration mounting bracket.
- In dusty or oil-mist environments, install a filter and replace the filter element regularly.
- When measuring in high pressure gas, use a suitable pressure-reducing device or select a model that can be directly connected to high pressure.
- Common causes include:
Contamination on the probe surface
Inaccurate temperature measurement
Unstable power supply or wiring
Probe aging, requiring recalibration
Possible reasons include clogged filters, overly thick protective sleeves, excessively long sampling tubes, or slower water absorption/desorption of the probe material. Cleaning, shortening the sampling path, or replacing the probe with a faster model can improve response time.
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