I've been using a rebadged Fined Offset WH1080 for a few years and it works 
well enough that I rarely think about it*. However, I'd like to add one 
more outdoor temperature sensor to my set up. Recording the data would be 
nice but isn't essential--not, by itself, worth buying a new weather 
station for.

Why: I just want to keep tabs on the temperature overnight in the chicken 
coop :-)

Currently my sensor unit is in the vegetable patch on one side of the house 
and the chicken coop is on the other, down the garden. The prospective new 
sensor location and the existing console are about 50m apart.

One low cost option might be putting a cheap LCD weather display in the 
kitchen, with an outside sensor in the chicken coop.

However, it appears that many of the low cost LCD weather displays that 
come with 1 or 2 outside sensors operate at the same wireless frequency 
(433MHz) as the WH1080 and I assume there'd be some risk of interference 
given a nominal range for the WH1080 of 100m (the land is on a slope and 
wi-fi doesn't reach from the house to the coop--whether that's significant 
I don't know).

How likely am I to have interference if I used one of these devices?

A comment (not a complaint): it's not that easy to match up things from the 
WeeWX hardware comparison page with products for sale online, on Amazon for 
example, given the extent of rebadging. It's fine if you want to compare 
some specific models of popular brands but, to give an example, not so easy 
to identify which units match certain criteria (having two or more outdoor 
sensors, UV recording etc). The manufacturers own web sites (Hideki e.g., 
even Fine Offset) are poor :-(

Happy to hear of any recommendations from anyone who upgraded from a WH1080 
to add an extra sensor or two. (Longer term I'm keener to add a touch 
screen to my Pi and have individually replaceable sensors than to buy a 
high-end unit).

*This post occasioned in part by my changing the batteries in the console 
and the sensor unit yesterday, after about 10 and 5 months respectively. I 
forgot to note how long the station had been up for before doing that. An 
unlinked? web page with uptime statistics and an ability to display 
manually logged events (such as battery changes or power outages--had both 
yesterday, which is how I discovered batteries needed changing) would be 
nice for the slightly less organized. I normally leave post-it notes of 
battery changes on my desk but somehow (cough) they got tidied up some time 
ago and I missed a few signal dropouts recently because I didn't scroll all 
the way to the end of the display.

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