Feature: 1. 【6-in-1 Carbon Monoxide Detector】The 6-in-1 carbon monoxide detector is not just a CO monitor, but also accurately measures CO2, TVOC, HCHO, temperature and humidity levels. 2. 【High Accuracy】Equipped with a high-precision electrochemical sensor, our portable CO detector can detect CO concentrations ranging from 0-500ppm(±10%),  400-6000ppm(±50ppm/±10%) of CO2. 3. 【4 Quality Indicators \u0026 Sound Alarm】Based on the CO and CO2 concentration data, the alarm displays a 4 olor display. Green (safe), yellow (needs attention), orange (warning), and red (dangerous). The default alarm triggers when the CO concentration exceeds 50PPM or CO2 exceeds 1000PPM.  Specification: Features: 【6-in-1 Carbon Monoxide Detector】The 6-in-1 carbon monoxide detector is not just a CO monitor, but also accurately measures CO2, TVOC, HCHO, temperature and humidity levels. 【High Accuracy】Equipped with a high-precision electrochemical sensor, our portable CO detector can detect CO concentrations ranging from 0-500ppm(±10%), 400-6000ppm(±50ppm/±10%) of CO2. 【4 Quality Indicators & Sound Alarm】Based on the CO and CO2 concentration data, the alarm displays a 4 olor display. Green (safe), yellow (needs attention), orange (warning), and red (dangerous). The default alarm triggers when the CO concentration exceeds 50PPM or CO2 exceeds 1000PPM. 【Easy Operation & APP Control】BT connection and APP control, can read up to 60 days 1440 groups of data of 6 parameters.Compatible with Apples and Android system.2 display interfaces, 3 seconds to switch with each other, 3 consecutive keystrokes to fix the current interface, and then press 3 times to exit the current interface. 【Built-in Battery & Backlight Display】The 6-in-1 CO detector comes with a built-in 1200mAh lithium battery, providing long lasting standby time when fully charged. High definition color backlit screen ensures easy reading even in the dark. 【Wide Application】This portable 6-in-1 carbon monoxide detector with wide measurement ranges, high accuracy, compact size, and easy operation. suitable for indoor and outdoors,home, office, school, camping, picnic, boat, airplane, adventure, car, and garage,ect. Specifications: Material: ABS Operating Voltage: 3.7V Current: 160mA Power: 0.6W Battery: 1200mAh Item Weight: 130g / 4.5oz Item Size: 94 * 94 * 30mm / 3.7 * 3.7 * 1.2in Package Weight: 260g / 9.1oz Package Size: 140 * 140 * 43mm / 5.5 * 5.5 * 1.7in Packing List: 1 * Carbon Monoxide Detector 1 * USB Cable 1 * User Manual Package List: 1 * Carbon Monoxide Detector 1 * USB Cable 1 * User Manual