THANKS.
I was really beginning to wonder about Acurite. The 3 temp/humidity towers currently monitor the backyard, the attic, and the garage via the iPad or iPhone. That Acurite setup works very well but it's SIMPLE and provides info I like to have. I really didn't want to lose a sensor to be able to have the Pro 5-1.
Since the Davis equipment is a bit pricey for someone new to this, could anyone provide me with some good suggestions based on their own experiences. I still have some spare Ethernet ports on one switch.
If everyone on this forum recommends just Davis, I guess I'll have to go that route. I really appreciate any and all suggestions!
As a former Davis owner, I don't recommend them. The price and old technology of Davis just aren't worth it to me. Let's just say you can buy multiple internet-enabled Acurite systems and be on the Internet quickly for the price of a Davis.
Anyway, the 5n1 would also give you backyard temps, so that's one sensor you might not need. It sounds like you have an independent display for two of them, so either of them could still work without MBW.
As far as updates, the 5n1 updates MBW every 18 seconds. The 15-minute to wunderground is just a free service they provide. If you want faster reporting, it can be added later.
The choice is up to you, but you've already got a working system you can expand without a lot of expense and effort.
If you can do some simple scripting with Linux, you can also expand beyond the 3-device limit of MBW by reading the bridge data directly. The bridge transmits data for every device it hears, regardless of the MBW limit. If you process that data locally, you can have as many sensor devices as you want, the only real limit being collisions of data packets on the 433MHz frequency.