Specification:
Origin: Mainland China
Tips: This product uses a semiconductor sensor with high sensitivity. However, it can only detect, and the data will not be very accurate (called qualitative but not quantitative). It can only detect mixed carbon dioxide, such as carbon dioxide exhaled by the human body, and cannot detect pure carbon dioxide.
Description: This machine is equipped with a carbon dioxide sensor and a temperature and humidity sensor, which can measure the concentration of carbon dioxide in the air and the ambient temperature and humidity in real time. The measurement range of carbon dioxide concentration is 400-5000ppm. When the concentration is between 400-800, a green strip is displayed. This means that the concentration of carbon dioxide in the air is low and the air is in a normal state. The green and yellow bands are displayed at the same time between 800 and 1200, which means that the concentration of carbon dioxide is higher. In this environment, it is harmful to the human body, and green, yellow and orange stripes are displayed between 1200 and 1500ppm, indicating that the air is not good for the human body; if it exceeds 1500, the green, yellow, orange and red bands simultaneously show that the concentration of carbon dioxide is seriously exceeded. When it exceeds 5000ppm, it may cause suffocation or even death. You should open the window for ventilation immediately.
Button operation:
Press once to switch the temperature, twice to turn the sound on and off, 3 times to enter the calibration interface, 4 times to enter the screen-off state (press once to light up the screen)
Parameters:
CO2 measurement range: 400-5000ppm
CO2 measurement accuracy: ±150PPM
Temperature measurement range: 0-50°C
Temperature measurement accuracy: ±1°C
Humidity measurement range: 0%-99%RH
Humidity measurement accuracy: ±2%RH
HCHO: 0-0.6mg/m³
TVOC: 0 -2.0mg/m³
Screen size: 2.8 inches
Screen type: TFT-LCD
Screen material: glass
Casing material: ABS
Screen resolution: 240*240
Response time: <1s
Working voltage: 5V/1A adapter charging (Type-C interface)
Maximum power: charging current 600mA Powered by 3.7V lithium battery
Battery capacity: 1200mAh
Battery type: lithium battery
Charging method: USB
Charging time: about 1 hour
Product size: about 90.00x70.00x35.00mm/3.54x2.76x1.38inch
Note:
Due to different monitor settings and lighting conditions, the actual color of the item may vary slightly from the pictures. Thanks for your understanding!
Please allow a 1-2 cm difference in measurements due to manual measuring.
Package Content:1 x Host
1 x Instruction Manual
1 x Data Cable