QQ Máy đo nồng độ khí CO2 mini kỹ thuật số với màn hình hiển thị tại Lotte Market

Giới thiệu QQ Máy đo nồng độ khí CO2 mini kỹ thuật số với màn hình hiển thị tại Lotte Market

#Digital #CO2 #Sensor #PPM #Meters #Mini #Carbon #Dioxide #Detector #Gas #Analyzer #Air #Quality #Monitor #USB
Digital CO2 Sensor PPM Meters Mini Carbon Dioxide Detector Gas Analyzer Air Quality Monitor USB Detector TVOC HCHO PM2.5 Meter
Features :
1. HCHO (formaldehyde) detection concentration value range:
0~1.999mg/m³;
2. The range of concentration values ​​detected by TVOC:
0~9.999mg/m³;
3. AQI air grade: 1~6
4. There is an over-standard alarm prompt;
5. There is low voltage shutdown;
6. Lithium battery power supply (built-in non-removable)

Instructions :
(1) Turn on/off:
Power on: Press and hold the power button for 1 second, and at the same time
Turn on the phone after hearing a beep.
Shut down: Press and hold the power button for 5 seconds, then you hear
Turn off after a beep.
(2) Preheating:
After power on, there will be on the LED screen every time
200 seconds automatic countdown. This is the formaldehyde sensor inspection
Measure the preheating process.
(3) Calibration:
After turning on, put the detector outside the window for ventilation
Place for more than 10 minutes, and then quickly press calibration
Press key 3, the instrument emits a beep (calibration successful),
The data on the LED screen will return to: 0.000 calibration
carry out.
(4) Detection:
After the calibration is complete, place the detector
Under the measurement environment, the current value is the detected value,
If the standard is not exceeded, the instrument does not emit a beep.
The standard values ​​of formaldehyde and TVOC are:
HCHO (formaldehyde): standard≤0.10mg/m³
TVOC: Standard≤0.6mg/m³

Specifications:
Main color: White
Material: ABS
Screen size: 2.8in
Detect error: ＜15％
Battery: 3.7V, 1000mAh
Charging standard: 5V, 1A
Standby time: about 240-360min
Temperature: 18-50℃
Humidity: 10-70% HR
Monitor fluctuate: 20%-50%
Item size: 14x4x3.6cm

Package list:
1 * Air Quality Tester
1 * USB Cable
1 * User Manual