Product Overview
MODBUS AIR04is a Modbus sensor module that integratesfour in one detection of illumination, temperature, humidity, and dew point temperature. Output detection data through RS485 bus, which can be connected to Home Assistant, building control system or industrial PLC. The product is easy to install and has reliable accuracy, making it particularly suitable for smart buildings and agricultural IoT projects that require simultaneous monitoring of environmental lighting and temperature and humidity.
Four in One Detection Parameters
| Parameters | Range | Accuracy | Typical Applications |
|---|---|---|---|
| Illumination (Lux) | 0-65535 Lux | ± 5% | Linkage curtains, dimming, fill lights |
| Temperature | -40~85 ° C | ± 0.3 ° C | Air conditioning linkage, temperature monitoring |
| Humidity | 0-100% RH | ± 2% RH | Dehumidifier linkage, environmental monitoring |
| Dew point temperature | Calculated value | — | Anti condensation warning, constant temperature and humidity control |
Dew point temperature application value
Dew point temperature is a differentiating function of AIR04- when the ambient temperature drops below the dew point, water vapor in the air condenses into liquid water (dew). Monitoring dew point temperature is crucial in scenarios such as data centers, distribution cabinets, cold storage, and constant temperature and humidity warehouses. When the temperature approaches the dew point, it is important to start the dehumidification or heating equipment in advance to prevent equipment condensation, short circuits, or material moisture.
Modbus communication
RS485 interface, standard Modbus RTU protocol, baud rate 9600 (8N1). Provide a complete register mapping table, including light value (Lux), temperature (° C × 10), humidity (% RH × 10), dew point (° C × 10), read using function code 03.
Applicable scenarios
- Intelligent greenhouseLight+temperature and humidity combined control sunshade and ventilation system
- Distribution room monitoringTemperature and dew point monitoring to prevent equipment failure caused by condensation
- High end conference roomLight linked electric curtains maintain a comfortable lighting environment
🛒 Purchase and Consultation
The MODBUS products introduced in this article can be purchased through official channels.
📍 Modbas Intelligence| 12th Floor, Tower A, Langqing Plaza, Guanyin Bridge, Jiangbei, Chongqing, China
📞 Phone:+86-023-65218879 | Duty mobile phone:+86-17723047591
📧 Email: admin@modbus.com | 🌐 Official website:www.modbus.cn
📱 Search for "Modbus Debugging Assistant" on WeChat Mini ProgramModbus Debugging Assistantto learn more about product information
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