Features:Multiple functionReal time testing the concentration of carbon dioxide, temperature and humidity.Selected quality sensorHigh accuracy, anti-interference, with quickly reaction speed.Equipped with large digital display with backlightYou can see the remaining electric quantity, carbon dioxide value, temperature and humidity data clearly.Color circleThe color circle will changed according to the detection data.Application areaAgricultural planting, greenhouse vegetables, production warehouse, material processing, home interior, etc.Specifications:- Material: ABS- Display: LCD screen + backlight- Color: Black, White (optional)- Battery: 1x rechargeable battery, 3.7V, 1200mAh (included)- Applicable temperature: -1 to 70 - Applicable humidity: 10-70%RH- Monitoring float: 20%-50%- Charging standard: 5V-1A- Co2 Measurement range: 400-5000PM- Standby time: 300-420 minutes- Item size: 7x4x9cm/2.8x1.6x3.5''- Package size: 11.2x4.5x11.5cm/4.4x1.8x4.5''Packing Included:1 x Carbon Dioxide Detector1 x USB Cable1 x Guideline / About service / On- Time Delivery Full refund if product isn't received in guaranteed delivery time Longer Protection 15 day more protection after order completion Returns Extra Return any product,only those in perfect condition Guaranteed Quality Guaranteed Quality or Full refund If you have any problems with our items or