Feature: 1. Light Weight and High Strength: Aluminum alloy has low density, light weight, but high strength and excellent mechanical properties, which is an excellent structural material. 2. Prime Material: Aluminum alloy is an environmental friendly and healthy material that does not produce harmful gases and pollutants, which meets the modern requirements for environmental health. 3. Product Features: This product uses aluminum alloy metal shell, prime baking paint process, TFT long color screen, ultra low power consumption, ultra long standby time. 4. Easy to Carry: Small and compact, with a portable lanyard, you can carry it around, hold it in your hand or put it in your pants pocket is very convenient, the appearance of high grade. 5. Good Performance: This indoor air detector is durable, not easy to damage, accurate and fast measurement, bringing a good experience of use. Specification: Item Type:Air Quality Detector Weight: 115g / 4.06oz Sensor Type: MEMS sensor, Electrochemical sensor HCHO Detection Range: 0-9.999mg/m³ Organic Pollutants Detection Range: 0-9.999mg/m³ Working Environment: -20~50℃ Humidity: <95%RH without condensation Battery Capacity: Polymer lithium battery 400mAh (included) Endurance Time: About 6 hours Charging Time: Approx. 1 hour Charging Method: USB type c Product Size: Approx. 1.6x2.7x10.5cm / 0.6x1.1x4.1in Body Material: Aluminum alloy Screen Size: 0.96in TFT color screen . Package List: 1 x Detector1 x Instruction Manual 1 x USB Cable