I am looking for a solution to have a security camera without WiFi or internet connectivity that I can view from another part of the house. I know that sounds weird, but my grandpa has a barrel underneath his house that collects water from underground seepage. He has a pump that pumps it out from under his house when the barrel gets full. There are times where he isn’t sure if the pump isn’t working or if there just hasn’t been that much water so I have to climb under the house and check it out.
Long story short, I would like to install a camera that points at that barrel so I can look at it instead of spending 45 minutes crawling under there 3-4 times per year. He does not have internet at his house and has poor cellular reception so both of those options are out. I was thinking that a baby monitor might work because it could stay plugged in down there and the remote viewer could just be turned on whenever, but I am not sure it would do well in a humid environment under the house with changing temperatures (Arizona summers ).
Does anyone have any other suggestions besides a baby monitor? It can be a low-tech suggestion, I’m just looking for anything that would fulfill this use-case without having to have internet installed in his home or have some other monthly service such as professional home security systems, etc.