

This product adopts explosion-proof design and supports dot matrix LCD data display with waterproof shell. The product supports the standard Modbus RTU protocol and can synchronously output temperature, humidity, and dew point measurement data. It can be interconnected with PLC, human-machine screen, DCS, and various configuration software; Simultaneously supporting the selection of 4~20mA/0-5V/0-10V three analog signal outputs (one out of three), it can be flexibly connected to on-site digital display meters, PLC, frequency converters, industrial control hosts and other equipment.


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HG808 dew point temperature and humidity transmitter | |
Range and Accuracy | |
Temperature range | -40 ~ 100°C |
Humidity range | 0 ~ 100%RH (recommend: <95%RH ) |
T accuracy | ±0.1°C(@20°C) |
H accuracy | ±1.5%RH (@20°C,10~90%RH) |
Input and Output | |
Power supply | DC 10V ~ 30V |
Power consumption | <0.5W |
Analog Outputs | Humidity+Temperature, Dew Point+Temperature (choose one) |
4-20mA/0-5V/0-10V (choose one from three) | |
RS485 Digital Output | Temperature, humidity, dew point (read simultaneously) |
resolution ratio: 0.01°C / 0.1°C (optional) 0.01%RH / 0.1%RH (optional) | |
Baud rate | 1200, 2400, 4800, 9600, 19200, 115200 can be set, The default is 9600 PBS |
Acquisition frequency | The fastest response is 1 second, other settings can be set according to PLC |
Byte format | 8 data bits, 1 stop bit, no check |
Pressurization | 16 bar |
Working temperature (Transmitter body) | - 20ºC ~ +60ºC, 0%RH ~ 95%RH (Non condensation) |



-- We are manufacturers.
Q: How long is the lead time?
B: Normally 7-10 working days, because we have the ability to stock the goods. For large orders, it takes about 10-15 business days.
Q: What is your MOQ?
-- The MOQ is 1 item.
Q: What are the payment options?
-- Western Union, Paypal, T/T, credit cards, online bank transfers, RMB, etc.
Q: Can it be customized?
-- Yes, you provide the measurement range you need, we customize according to your needs.
Q: What markets have you sold to?
-- We have shipped to Europe, Middle East, Asia, South America, Africa, North America, etc.
Q: What are the common uses of temperature and humidity sensors?
A: Temperature and humidity sensors are one of the most commonly used environmental sensors. It is widely used to provide the actual humidity status of the air at any given point or at any given location. Such equipment is usually used in situations where the air conditions are extremely bad or where the air conditions need to be controlled for various reasons.
A: Humidity is the presence of water within the air. Measuring humidity within the environment can be critical due to the fact that the higher the humidity, the warmer it may seem. In industries, humidity measurement is often important because it can affect the health and safety of personnel as well as the cost of the product. As a result, temperature and humidity sensors are often quite important.
Q: How do I choose a suitable Temperature and Humidity Sensor?
A: There are a some important specifications you might need to consider when you choosing this product.
This includes:
* Accuracy
* Long-term stability
* Ability to recover from condensation
* Resistance to physical and chemical contaminants
*Interchangeability
* Repeatability