AQD-101 Indoor Air Quality Display | CO₂, PM2.5, RH & Temperature | RS-485 Modbus | Wall Mount

4-in-1 Air Quality Display for Indoor Environmental Monitoring

The AQD-101 Air Quality Display, OEM-branded by A.C.S.C. SHIUAN JEY TECHNOLOGY and manufactured by AECL, is a professional-grade air quality monitor designed for real-time, high-visibility monitoring of indoor environmental conditions. Featuring a large 7-segment LED display, this wall-mounted unit continuously displays four critical parameters:

• Carbon Dioxide (CO₂)
• PM2.5 (Particulate Matter)
• Relative Humidity (RH)
• Temperature

It also includes time and calendar information, making it ideal for public-facing locations such as shopping malls, schools, offices, hospitals, and transit hubs.

Engineered for seamless integration into Building Management Systems (BMS) and automation platforms, the AQD-101 supports:

• RS-485 Modbus RTU communication
• Up to 3 configurable SPDT dry contact relays for ventilation control or alarms
• Micro SD card data logging (8GB / 16GB / 32GB)
• PC-based software for threshold configuration, calibration, and historical data review

This display is maintenance-free, wall-mountable, and certified for commercial use—offering reliable IAQ data where visibility and compliance matter most.

There is also a wireless variant of this product called LoRa, please contact us to find out more.

Key Features

• Measures CO₂, PM2.5, Temperature, and Relative Humidity
• Large-format 7-segment LED display with real-time air quality, clock, and date
• RS-485 Modbus RTU for system integration
• Up to 3 programmable relay outputs (SPDT dry contact)
• Micro SD card logging support (8GB / 16GB / 32GB)
• Wall-mount design for public-facing applications
• PC software included for calibration and threshold configuration
• CE & FCC certified
• Made in Taiwan
• Maintenance-free under normal operating conditions

Applications

• Smart Buildings & Building Management Systems (BMS)
• Commercial Offices & Reception Lobbies
• Shopping Malls & Retail Stores
• Train & Bus Stations
• Hospitals & Healthcare Centers
• Libraries & Museums
• Schools, Classrooms, and Kindergartens
• Industrial Facilities & Warehouses

Note: This product is built to order and not available for direct online purchase.
Please refer to the Datasheet below for detailed specifications and available configurations.

Once reviewed, click “Enquire Now” to contact us. We’ll help match the right model to your installation type, output requirements, and display preferences.

Downloads:

• Datasheet