High-Temperature Humidity Sensor
The HG808-T5N4 is a high-temperature humidity transmitter designed for extreme industrial environments such as power plant exhaust and flue gas monitoring. It accurately measures temperature, humidity, and dew point in conditions up to 200°C, using a heat- and corrosion-resistant probe. The device supports industrial outputs like RS485 (Modbus) and analog signals, making it suitable for integration into PLC and automation systems for reliable process control in harsh conditions.
Key Highlights
- Accurate humidity, temperature, and dew point measurement
- Corrosion-resistant and industrial-grade probe design
- Supports RS485 (Modbus) and analog output integration
- Designed for power plant flue gas and harsh industrial monitoring applications
Product Overview
High-Temperature Humidity Sensor HG808 Series is a robust industrial-grade sensing solution designed for accurate measurement of humidity, temperature, and dew point in extreme operating environments such as power plants, boilers, and industrial exhaust systems. Built to withstand temperatures up to 200°C and harsh, corrosive flue gas conditions, it ensures stable and reliable performance where conventional sensors fail. With high-precision sensing capabilities (±0.1°C temperature accuracy and ±2% RH humidity accuracy), the device delivers dependable real-time data for critical process monitoring and control.
Key Features & Capabilities
Enterprise-grade technology designed for mission-critical operations
High-temperature measurement capability
Designed to operate reliably in extreme environments up to 200°C for flue gas and exhaust monitoring
Accurate humidity and dew point sensing
Provides precise measurement of humidity, temperature, and dew point for process control
Industrial-grade corrosion-resistant probe
Built with durable materials to withstand corrosive and harsh industrial conditions
Multiple output interfaces
Supports RS485 (Modbus) and analog signals for easy integration with PLC and automation systems
Technical Specifications
Key technical details and performance specifications
| Specification | Details |
|---|---|
| Temperature Range | -40 ~ +200°C |
| Humidity Range | 0 ~ 100% RH (Recommend < 95% RH) |
| Temperature Accuracy | ±0.1°C (@ 20°C) |
| Humidity Accuracy | ±2% RH (@ 20°C, 10 ~ 90% RH) |
| Power Supply | DC 10V ~ 28V |
| Power Consumption | < 0.5W |
| Analog Outputs | Humidity + Temperature: 4~20mA / 0-5V / 0-10V (one out of three) |
| RS485 Digital Output | Temperature, humidity, dew point, PPM (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 (default: 9600 bps) |
| Acquisition Frequency | Fastest response: 1 second; other settings per PLC |
| Byte Format | 8 data bits, 1 stop bit, no check |
| Pressurization | 16 bar |
| Working Temperature | -20°C ~ +60°C, 0% RH ~ 95% RH (Non-condensation) |
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