this is mine, it stays on 24/7 as long as it's plugged into a wall outlet...so it gives me peace of mind glancing at it every pour and at night, then in the morning....making sure it doesn't all the sudden lose 8ozs or some BS...
https://www.amazon.com/gp/product/B00KYA0RC2/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
got the tip from someone else here a year ago, that kept their kegs on something similar...wish i could remember who, so i could give credit to the original idea man!
edit: works great for burst carbing too!
This is brilliant. Love this idea. Thanks for link!