Description W17 Indoor Air Quality Monitor Rechargeable CO CO2 Formaldehyde HCHO TVOC AQI Detector Real Time Tester for Car Home Office Feature: Easily detect five major substances: HCHO, TVOC, CO, CO2, AQI. It can be used in multiple scenarios: home air detection, car air detection, maternal and infant room air detection, and public place detection. Environmentally friendly materials, more comfortable to use. The compact design makes it easy to place and pick up. Thousands of precision, more accurate detection. Continuously conduct air monitoring anytime and anywhere to ensure timely detection of air quality problems. LED LCD color screen display, intuitive reading. Scientific air duct design, more accurate measurement, full contact with air. 850mAh capacity battery, long-lasting battery life. The working time is about 240 minutes, and the Type-C socket can be powered on at any time. Specification: Input voltage: 5V Input current: 1A Charging time: about 3 hours Working time: about 240 minutes Built-in battery: Yes (can be used while charging) Battery capacity: 850 mAh Product size: 120*63*26mm Product weight: 110g Packing size: 177*87*37mm Package weight: 138g Note: There may be slight size deviations due to manual measurement, different measuring methods and tools. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor. 1 X Air Quality Monitor 1 X Charging Cable 1 X Manual