Product Overview
MODBUS AIR7Cis a seven element air quality comprehensive detector that simultaneously monitors seven air indicators:temperature, humidity, carbon dioxide (CO2), formaldehyde (HCHO), TVOC, PM2.5, PM10. The detection data is output through the Modbus RTU bus protocol and can be connected to Home Assistant, Modbas central control host, or third-party building control systems for automation scenarios such as air quality display, fresh air linkage, and over limit alarm.
Seven detection parameters
| Detection items | Range | Accuracy |
|---|---|---|
| Temperature | -40~125 ° C | ± 0.3 ° C |
| Humidity | 0~100% RH | ± 2% RH |
| CO2 | 400~5000ppm | ± 50ppm |
| Formaldehyde (HCHO) | 0~5mg/m ³ | ± 5% |
| TVOC | 0~60000ppb | ± 15% |
| PM2.5 | 0~1000μg/m³ | ±10μg |
| PM10 | 0~1000μg/m³ | ±10μg |
Communication and Integration
Modbus RTU protocol (RS485 interface), baud rate 9600, standard Modbus register address mapping, providing a complete protocol table. In Home Assistant, entities can be added through Modbus integration, or directly connected to the central control through the Modbas bus system.
Precautions for use
- Preheat for at least 5 minutes before first power on
- The installation position should be 15-20cm above the ground to avoid dust pollution to the fan
- Avoid installation in environments with strong air convection
- Do not expose to high concentrations of organic gases for extended periods of time
Typical Applications
- New air linkageCO2 exceeds the standard → automatically opens the fresh air system → closes after CO2 returns to normal
- Formaldehyde monitoringContinuous monitoring of formaldehyde concentration before moving into the new house, data uploaded to HA records
- Air Quality DashboardReal time display of seven data items and historical curve analysis on the HA dashboard
🛒 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 phone:+86-17723047591
📧 Email: admin@modbus.com | 🌐 Official website:www.modbus.cn
📱 WeChat Mini Program Search"Modbus Debugging Assistant"for more product information
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