WiFi Smart Fresh Air Controller With PM2.5 CO2 VOC Detector 3 Speed Ventilation Control Panel

The KF-900M is an LCD digital smart controller specially designed for fresh air ventilation systems. It supports four operation modes: manual control and timing control, auto control and sleep mode, enabling flexible scheduling and adjustment of your fresh air fan.

This controller directly outputs control signals to manage the startup and three fan speeds (low/medium/high) of the fresh air unit. Equipped with a high-definition LCD display, it realizes real-time monitoring of indoor temperature, humidity, and optional air quality indicators including PM2.5, CO₂ and VOC. It also integrates practical functions such as filter replacement reminder, child lock, bypass valve control, WiFi remote control and weekly programmable timer.

Suitable for residential, commercial and industrial scenarios, this smart fresh air controller optimizes indoor ventilation efficiency, effectively improves ambient air quality, and helps build a healthy, comfortable, energy-saving and eco-friendly living and working environment.

• Multi-control Modes: Manual, Timing, Automatic & Sleep modes available
• 3 Fan Speed Adjustment: Low / Medium / High speed optional
• HD LCD Screen: Real-time display of time, week, indoor temperature & humidity
• Optional Air Quality Detection: PM2.5, CO₂, VOC monitoring function
• Practical Auxiliary Functions: Filter reminder, child lock, bypass valve switch, WiFi remote control
• Wide Application: Household, commercial buildings, industrial ventilation systems