Description: Multifunctional: This 5-in-1 detector can be used to test the air quality, including temperature, humidity and others, convenient for you to know the environment condition, enough to meet your different needs. Automatic: You can use the tester directly without calibration, it will automatically test the air quality when power on, saving your time and strength effectively. Rechargeable: There is equipped with a 1200mAh battery, it can be used for a long time after fully charged, and the digital screen will display the electricity quantity clearly. Heat diipation: There are designed with hundreds of air holes on the shell of the meter, which not only speed up the convection between the machine and air, but ensure a good heat-diipated capacity. Wide use: Suitable for agriculture, greenhouse, warehouse, home, office and other indoor rooms, this humidity and temperature meter is a good acceory for household and profeional occasions. Specification: Color: black, white. Size: approx. 90*70*40mm/3.54x2.76x1.57inch. Battery: 1x 3.7V 1200mAh(included). Testing range: 400-5000 PPM+50 +5%PPM. Testing sensitivity: 1PPM. Testing range: 0-2.0 mg/m3. Testing range: 0-0.6 ma/m3. Temperature testing range: -10-50. Temperature testing accuracy: 1. Humidity testing range: 0%-99%RH. Humidity testing accuracy: 2%RH. Note: The new detector needs 24-hour ventilation to ensure accurate measurement and normal operation of products. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please allow a slight deviation for the measurement data and make sure you do not mind before ordering. Package Includes: 1 Piece Air Quality Detector(with 1 Piece USB Cable, 1 Piece User Manual). Packing list