They last for years so not sure why you’d get 2 … I’d get more concentrates or bottles instead 
4 Likes
I’m on my 2nd one i dropped it in the sink Doesn’t like being submerged in water.
3 Likes
A few people have asked how I keep an eye on the NIC freezer. I’d previously had a networked WIFI sensor, but it failed, and I moved on to easier. Great unit, with 3 remote sensors, including the low temp freezer, just make sure to use Lithium batts anywhere the remotes are below freezing. Configurable alerts as well.
https://www.acurite.com/shop-all/weather-instruments/shop-all/indoor-outdoor-multi-sensor-station-with-3-sensors-105hv.html
https://www.amazon.com/Energizer-Ultimate-Lithium-Battery-Package/dp/B00EAKP8S0/
6 Likes