I have a neighbor across the street that has a log cabin and a lot of property with a natural gas well on the property and he gets free gas from it. He leaves the gas on all the time and runs the furnace all the time in the cabin as well. Sometimes the gas will go out when they do maintenance on the gas well and the furnace will shut off in the house so he has a temperature controlled weather alarm like this
that turns on a red light in the front window if the temperature drops below 45 degrees in the house and I can see the light from my house across the street. He's not there all the time, he lives about 2 hours away and the reason he does this is the first winter after he built the cabin the gas went out and froze all the pipes in the house and he had to replace all the pipes in the house, he said it was a real pain in the neck, which I can see.
Now, what I would like to know is, is there anyway I can monitor the temperature inside the house from my house across the street, probably around 350 - 400 feet away? Just so I wouldn't have to walk over there if the red light comes on because it sometimes gives false alarms because it isn't real reliable. I would like to be able to just look and see what the temperature is in the house so I can be sure of what the temperature is in the house.
I know there are weather stations that will go like 330 feet, do those work well? Does anyone have any experience using them long range? Is there anything else that anyone knows about? I don't want to spend tons of money on it either.