Looks to be the cheapest option at the moment. Cheaper than the recently posted gearbest deal.
I've bought one to maintain my car tyre pressures without having to go the servo.
Combine with cashrewards/shopback or US$3 off US$30 Click on 'Get Now' Link if available for you.
Cheaper here .
https://m.aliexpress.com/item/4000695572701
$47