This desktop VOC monitor offers real-time detection of indoor mixed gases with high sensitivity to total volatile organic compounds (TVOC).

Note: All Tongdy monitors and controls ship direct from the factory. Please allow 10-15 business days for shipping and handling.

It simultaneously displays temperature and humidity, providing a comprehensive overview of indoor air conditions. The device features a three-color backlit LCD that clearly indicates air quality levels, accompanied by a selectable buzzer alarm for immediate alerts. An optional on/off output allows integration with a ventilator for automated air control, and an RS485 interface is available for advanced connectivity. Its intuitive display and warning system enable precise air quality management to maintain a healthy environment. The unit includes a handheld remote controller for parameter setup and additional functionality.

• Real-time monitoring of PM2.5, PM10, temperature and humidity for complete indoor air quality insight

• Built-in semiconductor mixed-gas sensor with 5-year lifespan for long-term reliability

• Detects a wide range of harmful gases, including cigarette smoke, VOCs (formaldehyde, toluene), ethanol, ammonia, hydrogen sulfide, sulfur dioxide and more

• Clear LCD display shows current readings plus a one-hour moving average for accurate trend analysis

• Six-color backlight system aligned with PM2.5 AQI standards for intuitive visual air quality indication

• Three-level color alarm (green/orange/red) with buzzer warning for quick response to poor air conditions

• Provides one relay output to control a ventilator or other air-handling equipment

• Optional Modbus RS485 communication for seamless integration into building management systems

• Flexible design for desktop use or wall mounting in residential, commercial, and industrial settings
  

• Remote Control for parameter setup and additional functionality