P1 External Hydrometer mounr

a remix hygometer mount with a hole in that back making it easier to remove when its time to change the battery, and allow airflow for a potental better reading. the hygromter used for my project.https://www.amazon.com/dp/B07GR65CNT?th=1&linkCode=ll1&tag=jimmy0aaa-20&linkId=5123452795fd612a7b18d092ce017516&language=en_US&ref_=as_li_ss_tl