KH.QX-3 Integrated Temperature, Humidity, and Atmospheric Pressure Sensor – RS485 MODBUS Weather Station

Product Overview

The KH.QX-3 integrated temperature, humidity, and atmospheric pressure weather station is an industrial-grade sensor designed for accurate and long-term environmental monitoring. With advanced sensing technology and a compact integrated design, it delivers stable and precise measurements of air temperature, relative humidity, and barometric pressure.

This automatic weather station is widely used in smart agriculture, climate observation, urban environmental monitoring, meteorology, transportation infrastructure, wind power generation, marine monitoring, and airport meteorological systems. Equipped with RS485 MODBUS RTU communication, it integrates easily with existing monitoring platforms and IoT systems.

Key Features

High precision and stability: Ensures accurate temperature, humidity, and pressure readings even under harsh weather conditions.

Durable outdoor design: Made of ASA engineering plastic, resistant to UV radiation, aging, and color fading.

Maintenance-free operation: Fully integrated structure with no moving parts means zero mechanical wear and no on-site calibration required.

Strong anti-interference performance: Includes a watchdog circuit and automatic reset function for stable and continuous operation.

Flexible data transmission: Standard RS485 MODBUS RTU interface; optional RS232, USB, or Ethernet ports are available.

Supports wireless monitoring: Optional wireless transmission module allows real-time online monitoring with a minimum interval of one minute.

Technical Specifications

The KH.QX-3 sensor measures air temperature from -40°C to +60°C with an accuracy of ±0.3°C.
It detects air humidity across the full 0 to 100% RH range, with an accuracy of ±3% RH.
Atmospheric pressure can be monitored within 300 to 1100 hPa, achieving an accuracy of ±0.25%.
The total power consumption of the device is only 0.12 W, making it a highly energy-efficient solution for long-term field monitoring.

Typical Applications

Smart agriculture and irrigation systems
Weather observation and environmental data collection
Wind and solar power stations
Road, bridge, and tunnel weather monitoring
Marine and aviation environmental stations

Why Choose KH.QX-3

The KH.QX-3 combines accuracy, durability, and affordability, making it the ideal choice for professionals and integrators who require reliable and real-time weather data. Its robust construction and flexible communication interfaces allow easy deployment across a wide range of environmental monitoring scenarios.

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