SPECIFICATIONS

APP: SMART LIFE/TUYA

CO2 adjustment range: 350-1000ppm

CO2 display range: 350ppm-1999ppm

Certification: CE

Communication protocol: RS485

Gas Type: CO2

Humidity display range: 5 %RH~99%RH

Model Number: TY900A,air quality monito

Operating mode: Automatic, manual, timing

Output interface: Three-speed ventilator

PM2.5 display range: 0ug/m³~500ug/m³

Rated voltage: AC95-240V/50Hz

Temperature display range: 0~50,0 ~ 99℃

Type: HVAC Systems,Air Purifier Parts

Wind speed mode: High,medium,low and automatic

TUYA WIFI Smart Home CO2 PM2.5 Fresh Air Valve System Fan Coil Unit Dehumidifier Ventilation Controller with Modbus&RS485

WIFI Air Valve Controller for Ventilation System with CO2 PM2.5 VOC RS485 Three Speed Control Remote Intelligent Switch

TUYA SMART LIFE Air Quality Sensor CO2&PM2.5&VOC&temperature&humidity Detector for Wifi Regulator Fan Control Saving Ventilation HVAC Systems

The 900 series integrates the intelligent ventilation system controller of PM2.5, CO2, VOC, temperature, humidity and other sensors. The output signal of the controller directly controls the start and speed of the fresh air blower, and the design of high-sensitivity touch buttons. Optional (Built-in WIFI module RS485 module), remote access and control, communication with smart home, building intelligent control, etc., through the relay to control the start and stop of the output AC fan and valve; Optional (output 0-10V proportional control) (support Valves or fans or other proportional equipment).

Can be widely used in residential, commercial and industrial applications to effectively improve air quality and create a healthy, comfortable and energy-saving living and working environment

feature

CO2, PM2.5, VOC sensor control output (optional according to your own needs)

Operation mode: automatic, manual, timing

Fan speed mode: high, medium, low, automatic fan speed/0-10V proportional fan output

Regularly output different fan speeds every week

Timed off/on

RS485 communication

Tuya WIFI mobile APP control

Restore battery memory function

Fresh air system filter alarm

Screen power saving mode switch

Time display

temperature display

Humidity display

Manual or automatic control of bypass valve

Output AC fan switch control (optional): high, medium and low output

Output DC fan 0-10V control (optional): 0-10V proportional fan (valve) output

Parameter

Scientists study summary!

CO2 concentration and human physiological response:

1.350 ~ 450ppm: general outdoor environment;

2.350 ~ 1000ppm: fresh air, smooth breathing;

3.1000~ 2000ppm: The human body feels turbid air and begins to feel drowsy;

4.2000~ 5000ppm: Feeling headache, lethargy, sluggishness, inabillty to 

concentrate, rapid heartbeat, mild nausea;

5. Greater than 5000 ppm: May cause severe hypoxia, causing permanent

brain damage, coma, and even death.

The main source of CO2 in the room is human activity An adult exhales about

22.6 L/CO2 while sitting or lying quietly, and the amount of exhales for children

is about half that of adults.

through the relay to control the start and stop of the output AC fan and valve  intelligent ventilation system controller of PM2.5, CO2, VOC, temperature, humidity and other sensors. The output signal of the controller directly controls the start and speed of the fresh air blower, and the design of high-sensitivity touch buttons

to effectively improve air quality and create a healthy, comfortable and energy-saving living and working environment

Can be widely used in residential, commercial and industrialProduct Display：

Basic version：

WIFI version :

Scalable modules:（Note: It takes five days to customize the product）

Item Type:Particle Concentration Sensor
Model:PM-G7
Detectable Gas Type: PM2.5
Effective Range: 0-500μg/m³
Maximum Range: 1000μg/m³
Particle Mass Concentration Resolution: 1μg/m³
Minimum Resolution Particle Size: 0.3μm
Accuracy: 10%
Response Time: ≤3s
Data Interface: UART@3.3V
Working Current: ≤100mA
Output Type: Serial Port
Working Temperature: 50 (°C)
Power Supply Voltage: 5V (4.8-5.5V)
Shell Material: Iron
Size:48 x 37 x 12mm / 1.89 x 1.46 x 0.47in  

Product Name: Infrared Carbon Diox-ide Sensor Module

Technical indicators:Detection principle: non-dispersive infra-

red technology (NDIR)

Detection range: 400-2000ppm (expand-able to 5000ppm)

Power-on stabilization time: 30sData refresh time: 1s

Detection accuracy:土(50ppm + 5%)Working conditions: -10-50°C, 0-95%RH or

less (non-condensing)Storage conditions: -20-60°C, 0-95%RH or

less (non-condensing)Working voltage: DC 5.0V+2%; ripple<50mV

Working current: average working current<30mA

Model output: 1.UART TTL (3.3V)2.PWM (3.3V)3.IC (customized)

Product size: W33*H19.7*D11 4(mm)

Size description:

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