A56 4-in-1 Desktop HVAC Controller

The A56 is a 4-in-1 desktop HVAC controller with built-in multi-parameter air quality sensing. It monitors PM2.5, CO₂, TVOC, temperature, and humidity in real time for visible environmental management.

It supports Wi-Fi connection with HVAC and fresh-air systems, and can automatically adjust operating status based on air quality data for a smarter air control experience.

  • Built-in multi-parameter sensors for PM2.5, CO₂, TVOC, temperature, and humidity
  • Real-time environmental monitoring and display
  • 4-in-1 integrated control
  • Supports smart home integration
  • Automatic fresh-air operation adjustment
A56 4-in-1 Desktop HVAC Controller
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Technical Specifications
4-in-1 Desktop HVAC Controller
Operating Voltage
AC 220 V
Power Consumption
≤ 5 W
PM2.5 Measurement Range
0–1000 μg/m³
PM2.5 Accuracy
±10% (≤100 μg/m³)
CO₂ Measurement Range
400–5000 ppm
CO₂ Accuracy
±50 ppm ±5%
TVOC Measurement Range
0–3 mg/m³
TVOC Accuracy
±15%
Temperature Measurement Range
-10°C to +60°C
Temperature Accuracy
±0.5°C
Humidity Measurement Range
0%–95% RH
Humidity Accuracy
±3% RH
Communication Interface
RS485 / Modbus RTU / Wi-Fi
Refresh Interval
1 s
Operating Temperature
-10°C to +60°C
Storage Temperature
-20°C to +70°C
Applications
Whole-Home Smart Air Management System

Whole-Home Smart Air Management System

Linked with smart HVAC and fresh-air systems, the controller enables visible air quality monitoring and automatic adjustment through real-time PM2.5, CO₂, TVOC, temperature, and humidity data.

It delivers a data-driven smart air management solution for residential and commercial spaces.

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