KH.QX-3 Integrated Temperature Humidity and Pressure Sensor for Weather Monitoring and Smart Agriculture | IoT Environmental Monitoring
High-precision integrated sensor for temperature, humidity, and atmospheric pressure measurement. Ideal for meteorological stations, smart agriculture, rivers, lakes, and reservoirs. RS485 MODBUS enables seamless IoT integration.
Product Introduction (pdf)
Product Introduction
The KH.QX-3 Integrated Temperature Humidity and Atmospheric Pressure Sensor is a high-precision environmental monitoring instrument designed for long-term outdoor deployment, meteorological observation, and smart agriculture climate monitoring.
By combining temperature, relative humidity, and barometric pressure sensing into one compact device, it provides stable and reliable atmospheric data in variable environmental conditions.
The RS485 MODBUS RTU interface allows easy integration into weather stations, agricultural monitoring systems, hydrological networks, and IoT-enabled environmental platforms. Its durable ASA engineering plastic housing ensures accurate operation in harsh outdoor conditions with minimal maintenance.
Key Features
- High Precision Measurement
Accurate temperature, humidity, and atmospheric pressure readings for meteorological, agricultural, and environmental applications. - Integrated Multi-Parameter Sensor
Three sensors combined in one device reduce installation complexity and lower equipment cost. - Durable Outdoor Structure
ASA engineering plastic housing resists UV exposure, corrosion, and extreme environmental conditions. - Maintenance-Free Operation
Non-mechanical sensing structure ensures long-term stability and low maintenance requirements. - Strong Anti-Interference Performance
Built-in watchdog and automatic reset protect against environmental and signal interference. - Flexible Communication Integration
Standard RS485 MODBUS RTU output with optional RS232, USB, or Ethernet for seamless integration into monitoring platforms. - Optional Wireless Monitoring
Supports wireless transmission modules for remote and real-time environmental data collection.
Application Scenarios
- Smart Agriculture Monitoring
Precision farming, greenhouse climate monitoring, irrigation scheduling, and agricultural weather networks. - Meteorological Stations
Automatic weather stations, regional climate monitoring, and environmental observation networks. - Environmental Monitoring
Rivers, lakes, reservoirs, and outdoor environmental research projects. - IoT-Enabled Weather Networks
Seamless integration with telemetry systems, SCADA, and smart environmental monitoring platforms.
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 |


