Digital LCD Indoor-Outdoor Thermometer Hygrometer Electronic Temperature Humidity Meter Weather Station With Alarm Clock

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 1)Is the weather forecast accurate?

It is about as accurate as the weatherman. It only makes a simple prediction based on a rising barometer indicating that good weather is coming and a falling barometer indicating that the weather is going to get worse. Keep in mind, clouds and rain on the display DO NOT mean it is going to rain. It just means that the weather is going to get worse somehow. Likewise, sunshine does not mean it is going to be sunny outside. It just means the weather is going to be better in general than it has been. The thermometer should be located in an area that is covered but vented so it is always in the shade. The temperature will read several degrees lower than a thermometer that is located out in the daylight even if it is out of direct sun.

2)What kind of batteries does it take?

The Weather Station need USB to charge when it works, Remote Sensor need 2 x AAA batteries

3)Does the backlight stay on all the time?

Yes, it is on as long as it has electrical power! It makes a great night light if you don't want to turn the light on!

4)What frequency do these operate on?

433 Megahertz.

5)Can it show temperature in celsius?

Answer: Yes it can. Just touch the button in the back of the screen. 

6)Do you need WiFi?

No

7)Is the AV cord included?

The AC cord came with it.