I'm just starting a similar project to monitor my home. I decided on using esphome.io based devices connected to my Home Assistant setup. Spark Fun has a great ecosystem [1] of sensors and carriers [2] that are just plug and play as far as the hardware goes (no soldering). You would just need to DIY a case.
You could probably also find off the shelf Bluetooth sensors that would interface with Home Assistant for data logging and visualization.
Typical counting of things starts from 0. If you count apples you implicitly start at zero and add 1 for each apple. If you count age, you start at birth (0) and count years; one for each birthday. That isn't zero based. The difference is the index of the item between the starting point and the next item. In zero based this item is number 0, in one based, this item is number 1. The first year of life is generally considered the year following birth.
You could probably also find off the shelf Bluetooth sensors that would interface with Home Assistant for data logging and visualization.
[1]: https://www.sparkfun.com/categories/tags/qwiic [2]: https://www.sparkfun.com/products/17724