Wall Mount 4 Inch HD Color Screen Air Quality Tester, PM2.5 CO2 CO HCHO VOC Temperature Humidity Monitor For Hotel Apartment

Designed to deliver reliable, real-time environmental insight, the G1-A integrates seven critical air quality metrics in one compact unit: PM2.5, CO₂, CO, Temperature, Humidity, VOC, and Formaldehyde (HCHO). Its 4-inch high-definition color screen clearly visualizes all readings at a glance, with intuitive status prompts to help users quickly judge whether indoor air is fresh and healthy.

Crafted for managed spaces, the G1-A is an ideal solution for offices, hotels, hospitals, apartments and other public facilities. It brings stable, continuous air quality visibility to building managers, supporting smarter indoor environment control and creating healthier indoor spaces for occupants.

The G1-A features a streamlined, fast wall-mount installation workflow. It supports industrial-grade RS485 communication and 12–24V DC power supply, making it easy to integrate into existing building automation systems. Users can also remotely check air data via the Tuya App for convenient off-site monitoring.

• 7-in-1 Multi-Parameter Real-time Monitoring Simultaneously measure PM2.5, CO₂, CO, HCHO(Formaldehyde), VOC, temperature and humidity.
• 4-inch HD Color Display Clear intuitive screen, real-time data display and air quality status prompt for quick check.
• RS485 + Tuya WiFi Dual Communication RS485 for integration with HVAC / building automation systems; Tuya App for remote data viewing.
• Slim Wall-mounted Design & Two Color Options Compact size 87×87×24mm, Moonlight White & Obsidian Black, easy and fast installation.