This 15-in-1 quality tester integrates multiple test functions for measuring AQI, , CO2, PM0.3, PM1.0, PM2.5, PM10, formaldehyde, TVOC, , humidity, as well as display, , timer and countdown timer functions, providing a complete solution for your quality needs. Supporting customizes limits, sets sleep modes, and effortlessly explores detailed historical data on parameters by day, month, or year. Multifunctional design, supports unit switching, versatile timer settings, and function. It provides a comprehensive way to constantly track indoor quality, empowering you to stay informed about the conditions in your home from anywhere, at any . 

Features:
【Comprehensive Quality Test】:
This 15-in-1 quality tester integrates multiple test functions for measuring AQI, , CO2, PM0.3, PM1.0, PM2.5, PM10, formaldehyde, TVOC, , humidity, as well as display, , timer and countdown timer functions, providing a complete solution for your quality needs.
【TFT Color Display & APP Control】: 2.8-inch TFT color screen, you can see the test data clearly at a glance. With the APP, enjoy real- testing and remote management of your home's quality from anywhere you are. 
【Personalized Settings & Historical Data Checking】: Supporting customizes limits, sets sleep modes, and effortlessly explores detailed historical data on parameters by day, month, or year. The app also boasts a user-friendly interface with options for temperature unit switching and versatile timer settings, ensuring a personalized and convenient experience tailored to your needs.
【Warning & Visual Alert】: After connecting to , users can set the value according to their needs. Once the measured data exceeds the standard, the device immediately sends out three beeping alarms, and the interface color changes with the quality (green-, orange-warning, red-bad), intuitive warnings to guarantee immediate response.
【Intelligent Linkage Control】: Use high-end infrared and sensors to ensure measurement accuracy. It can link with the smartplug to control external devices. For example, you can set the exhaust fan to turn on when the CO2 concentration exceeds 1500ppm and turn off when it drops below 800ppm, saving electricity. Applicable to families, schools, hospitals, 's rooms, hotels, restaurants, , and other places. 

Specifications:
Name: Quality Tester 
Material: plastics
Model: MT15-B, MT15-W (optional)
: 2000mAh polymer (included)
Working voltage: 3.7V
Working current: 260mA
CO2 detection ranges: 400-5000PPM, ±50 ±5%PPM
CO2 detection sensitivity: 1PPM
detection ranges: 0-999PPM, ±10PPM
detection sensitivity: 1PPM
TVOC detection ranges: 0-9.99mg/m³, ±0.05mg/m³
HCHO detection ranges: 0-1.99mg/m³, ±0.05mg/m³
PM2.5 detection ranges: 0-999μg/m³, ±10μg/m³
PM2.5 detection sensitivity: 1μg/m³
PM1.0 detection ranges: 0-999μg/m³, ±10μg/m³
PM10 detection ranges: 0-999μg/m³, ±10μg/m³
PM0.3 detection ranges: 0-999μg/m³, ±10μg/m³
ranges: -10~50°C
error: ±2℃
Humidity measurement ranges: 0%-99% RH
Humidity measurement error: ±5%RH
: 5VDC, 1A Type-C interface
Item size: 90 * 35 * 70mm / 3.54 * 1.38 * 2.76in
Item weight: 165g / 5.82ounce
Package size: 141 * 97 * 48mm / 5.55 * 3.82 * 1.89in
Package weight: 185g / 6.53ounce

Packing List:
1 * Quality Tester 
1 * Cable
1 * Guideline