Specification Brand : IndustrialField BulletPoint1 : DHT11 Temperature And Relative Humidity Sensor Module for arduino BulletPoint2 : Developed Countries Estimated Delivery Time: 7-17 days(trackable),Other countries Estimated delivery time : 8-30 days.----- We provide Expedited Shipping service : 3-8 days.(excluding handling time).If the order amount above US $200, we will use Expedited Shipping service for free. BulletPoint3 : If it is not delivered within the specified time, or if it is not satisfactory. You only need to send a refund request and we will refund you in full. BulletPoint4 : We make every effort to provide customers with satisfactory service.any question,please feel free to contact me. ExternallyAssignedProductIdentifier : 4793392478767 ItemName : DHT22 Digital Temperature and Humidity Sensor AM2302 Module+PCB with Cable for arduino ItemTypeKeyword : humidifier-accessories Manufacturer : IndustrialField Material : Copper PartNumber : IF-modulen_10695 ProductDescription : DHT22 Digital Temperature and Humidity Sensor AM2302 Module for Arduino 1. Size: 28.2 mm (length) * 13.1 mm (width) * 10 mm (high) 2. Weight: 6 g 3. Working voltage: 3 V - 5.5 V 4. The sensor models: the loose AM2302 temperature and humidity sensor 5. Signal output form: digital signal 6. Temperature measurement range: - 40°c to 80°c 7. Measuring accuracy: 0.5°c 8. The humidity measuring range: 0-100% RH 9. Measuring accuracy: 2% RH 10. Resolution: 16 11. With fixed screw holes, convenient installation and fixation. Diameter of 2.6 mm Module interface description: "+" : positive "-" : the power of anode "Out" : the microcontroller IO port 1 * DHT22 Temperature Humidity Module 3*cable