Looks great, and pairing multiple thermometers with one display is a convenient feature! I would like to monitor the temperature of my pool and my pond but see no way to purchase an additional thermometer without another display (Amazon lists IBS-P02R-O as "Currently unavailable. We don't know when or if this item will be back in stock."). Do you?
Reseller did not specify durability, i am sharing so people can make informed choice. In my country 4 aaa bateries =1.6 eur every 4 days. As i live in spain the pool season is 6 months = 72 eurs yearly on batteries. That is way above price of this whole device. Does not make sense for me. But everyone can make their judgement