Three guides to the decisions that come before any product comparison — the ones where reading a spec table first means comparing things that were never alternatives.
Compatibility comes before quality
RV monitoring equipment is unusual in how much of the decision is a filter rather than a ranking. Your rig has a 30 or a 50 amp service; your tires have a placarded pressure; your plumbing has a connection standard. Those facts eliminate most of a category before any question of which product is better arises.
Get them wrong and the best-specified product on the shelf is the wrong purchase. These guides cover the filters.
Why a 50 amp service supplies roughly four times the power rather than 1.67 times, what an adapter does and does not give you, and why this is the first question in the electrical category.
If you are fitting one thing, which one. A priority order based on what each failure costs and how much warning it gives you, rather than on what is easiest to install.
The distinction running through this whole site. Most RV monitoring hardware tells you something is wrong; a much smaller set acts. Knowing which you bought matters most when you are asleep.
What these guides do not do
They do not recommend products, because we do not test them. They carry no prices, because a figure written into a page is stale before it is indexed. And they do not tell you what your rig requires — that is in your rig’s documentation, and anything touching the electrical system belongs with a licensed installer.
