Wind direction accuracy: 360 degrees Sampling time: 60 seconds Wi-Fi standard: 802.11 b/g/n Wireless frequency: 2.4 GHz Wi-Fi transmission distance: 20 meters 1. Outdoor temperature range: -40℃ to +60℃/℉ 2. Indoor temperature range: 0℃ to +60℃/℉ 3. Temperature accuracy: ±1℃ 4. Humidity range and accuracy: 10% to 99% (1% resolution); accuracy: ±5% 5. Barometric pressure range and accuracy: 300 to 1100 hPa 6. Rainfall display: 0 to 9999 mm 7. Rainfall accuracy: 0 mm to 9999 mm 8. Wind speed range and accuracy: 0 to 50 m/s Specification: Power supply: (Batteries not included) Receiver: 3 x AA alkaline batteries or 5.9V/500mA power adapter Transmitter: 3 x AA alkaline batteries Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Plug Type: US Plug,it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on. EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. AU Plug,it applies to Australia and so on. UK plug,it applies to Malaysia, the United Kingdom and so on. Voltage:AC100-240V Color:As Shown Material:ABS Package Contents: 1 * Weather station (indoor unit) 1 * Outdoor sensor (outdoor unit) 1 * Power adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.