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KH.QX-3 Integrated Temperature, Humidity & Atmospheric Pressure Sensor | RS485 MODBUS Automatic Weather Station
Product Introduction
The KH.QX-3 Integrated Temperature, Humidity and Atmospheric Pressure Sensor is an industrial-grade environmental monitoring device designed for long-term and high-precision atmospheric measurement. It integrates temperature, humidity, and barometric pressure sensing into a single compact module using advanced digital sensing technology. With RS485 MODBUS RTU communication and excellent durability, the KH.QX-3 is suitable for weather stations, smart agriculture, transportation, renewable energy monitoring, and urban environmental observation.
Key Features
• High-precision sensing: Stable and accurate measurement of temperature, humidity, and barometric pressure under changing weather conditions.
• Durable outdoor design: ASA engineering plastic housing provides strong UV resistance, aging resistance, and long service life.
• Zero-maintenance structure: Integrated design with no moving parts, minimizing field maintenance and eliminate mechanical wear.
• Strong anti-interference: Built-in watchdog and automatic reset function ensure continuous and reliable operation.
• Flexible communication options: Supports RS485 MODBUS RTU; optional RS232, USB, or Ethernet for different integration needs.
• Supports wireless monitoring: Optional wireless module enables real-time online monitoring with ≥1-minute update interval.
Application Scenarios
• Smart agriculture and irrigation environmental monitoring
• Meteorological stations and climate observation
• Road, bridge, and tunnel safety weather monitoring
• Wind and solar power stations
• Marine and coastal environmental monitoring
• Urban environmental and air pressure monitoring systems
Technical Specifications
| Parameter | Specification |
|---|---|
| Temperature Range | -40°C ~ +60°C |
| Temperature Accuracy | ±0.3°C |
| Relative Humidity Range | 0–100% RH |
| Humidity Accuracy | ±3% RH |
| Atmospheric Pressure Range | 300–1100 hPa |
| Pressure Accuracy | ±0.25% |
| Communication Interface | RS485 (MODBUS RTU) |
| Optional Interfaces | RS232 / USB / Ethernet |
| Power Consumption | ≤0.12 W |
| Update Interval | ≥1 minute |
| Housing Material | ASA Engineering Plastics |
| Operating Conditions | Outdoor, weather-resistant design |
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