IBS TH2 plus battery problem

I hav in my garden porch a IBS TH2 plus LinkedIn yo my InkBird gateway IBS M1 also connected to my swimming pool IBS P01B. Well both connect perfectly with the gateway and sed information without problem, but, in my Porch sensor (IBS TH2 plus) batteries do not hold for a long time ( less than a week) when the others hold por several moths. I change the time setting for sending information but does not change batteries life. Any tips o solution

May I know what the ambient temperature is for placing the IBS-TH2 PLUS?
Will it also drain within 1 week if tested with fresh alkaline batteries?