Specification:
Origin: Mainland China
Tips: This product uses a semiconductor sensor, which has high sensitivity. However, it can only detect, and the data will not be very accurate (qualitative rather than quantitative). It can only detect mixed carbon dioxide, such as carbon dioxide exhaled by humans, and cannot detect pure carbon dioxide.
Description: This device 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 400-5000 ppm. When the concentration is between 400-800, a green band is displayed. This means that the concentration of carbon dioxide in the air is low and the air is in a normal state. A green and yellow band is displayed simultaneously between 800 and 1200, which means that the concentration of carbon dioxide is higher. In such an environment, it is harmful to the human body. Between 1200 and 1500 ppm, green, yellow, and orange stripes are displayed, indicating that the air is bad for the human body; if it exceeds 1500, green, yellow, orange, and red bands are displayed simultaneously, indicating that the carbon dioxide concentration is seriously exceeded. When it exceeds 5000 ppm, it may cause suffocation or even death. You should open the windows for ventilation immediately.
Button Operation: Press once to switch temperatures, press twice to turn the sound on/off, press 3 times to enter the calibration interface, press 4 times to enter screen-off mode (press once to turn on 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
Product Dimensions: Approx. 90.00x70.00x35.00mm / 3.54x2.76x1.38inch
Screen Resolution: 240*240
Response Time: <1s
Operating Voltage: 5V/1A (Adapter charging) (Type-C interface) Maximum power: 600mA charging current, powered by a 3.7V lithium battery
Battery capacity: 1200mAh
Battery type: Lithium battery
Charging method: USB
Charging time: Approximately 1 hour
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