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Products Description
What is HG808-F?
Nexisense HG808-F is a high-precision temperature and humidity sensor designed for extreme industrial environments. It integrates temperature, humidity, dew point, and optional CO₂ monitoring functions. Specifically engineered for acidic, alkaline, high-salt, and high-humidity environments, it's widely used in chemical plants, coastal factories, fermentation tanks, and acid gas pipelines.
Equipped with a 316L medical-grade stainless steel probe, modular structure, and versatile output interfaces, the HG808-F ensures reliable, long-term operation even under harsh conditions.
Working Principle
HG808-F uses a digital high-precision sensing unit with thermistor and capacitive humidity sensors to continuously monitor environmental temperature and humidity. An intelligent compensation algorithm corrects real-time readings based on temperature to improve accuracy and anti-interference performance.
With RS485 Modbus-RTU protocol, remote configuration and data integration with PLC systems are seamlessly supported.
Structural Design
Sensor Probe: 316L stainless steel, corrosion-resistant
Main Control Unit: Embedded algorithm and signal conversion
Housing Options: Wall-mounted, duct, thread, and flange types
Display Module (optional): LCD for real-time data
Power & Signal: DC 12–24V input; multiple output types
Measurement Methods
HG808-F supportsboth active and responsive sampling strategies, optimized for various application scenarios:
Type 0A (Duct/Wall): For general indoor/duct monitoring
Type 3A (Long Rod): Ideal for fermentation tanks or high-temperature zones
Threaded Gas Sampling Probe: For closed pipelines and exhaust monitoring
Even in 0–95% RH environments, the sensor maintains high accuracy (±2% RH). Optionaldew point, CO₂, and PPM monitoring features enhance smart environmental control.
Application Scenarios
| Industry | Typical Conditions |
|---|---|
| Chemical / Pharmaceutical | High corrosion from acid/alkali vapors |
| Marine / Coastal Plants | Persistent saltfog and high humidity |
| Food Fermentation | High temperature and humidity |
| Gas Treatment Pipelines | Acidic gases, pressurized environments |
| Wastewater Facilities | Hydrogen sulfide, ammonia, corrosive gases |
| Underground Power Channels | Unattended areas requiring high stability |
Technical Specifications
| Category | Specification |
|---|---|
| Brand | Nexisense |
| Model | HG808-F Series |
| Temperature Range | -40°Cto +120°C |
| Humidity Range | 0 to 95% RH |
| Temperature Accuracy | ±0.2°C (at 23°C) |
| Humidity Accuracy | ±2.0% RH (10–90% RH at23°C) |
| Long-Term Drift | ≤1.0% RH/year |
| Optional Parameters | Dew Point, CO₂, PPM |
| Signal Output | 4–20mA / 0–5V / 0–10V / RS485 Modbus-RTU |
| Baud Rate | 1200–115200 bps |
| Max Pressure | ≤16 bar |
| Probe Material | 316L Stainless Steel |
| Mounting Options | Wall, duct, thread, flange |
| Display | Optional LCD |
| Power Supply | DC 12–24V |
| Remote Configuration | Supported (via RS485/PLC) |
Key Advantages
Superior Corrosion Resistance: 316L stainless steel probefor acidic, alkaline, and salt-rich environments
High Precision & Smart Compensation: Optional dew point and CO₂ integration
Flexible Installation: Multiple probe options for diverse scenarios
Multi-Signal Output: Compatible with major industrial systems
Reliable Operation: Anti-condensation, high pressure,and stable long-term performance
Conclusion
The Nexisense HG808-F Series is a smart environmental monitoringsolution tailored for harsh industrial settings. With exceptional anti-corrosion performance, multi-parameter measurement, and broad compatibility, it delivers precisionand stability in every deployment—from chemical ducts to fermentation chambers.
Choose HG808-F — Your Reliable Partner for Harsh Environmental Monitoring.
