Seriously consider how you are going to adjust, clean off and otherwise use the magnetic sweeper.
Try and visualize yourself using the magnetic sweeper in your situation.
Are you going to need a certain sweeping height?
If you’re in grass, you don’t want a magnetic sweeper with a fixed sweeping height of 1″ because it won’t push through the grass, you’ll need 2 or 2 1/2″ of sweeping height for grass and you’ll also need a magnetic sweeper with “wrap around” capabilities.
Is the magnetic sweeper you’re looking at going to have enough power to pickup what you need to pickup?
Look at the manufacturers specifications on lifting height or ask them directly and look at their videos and testimonials. If a retailer doesn’t provide this information make sure you can send the unit back if it doesn’t perform. The bottom line is, make sure, because all magnets are not created equal, and you can’t judge much just by looking at the size of the exterior housing. A lot of the time there is just a lot of empty space inside housings.
How will you clean off the magnetic sweeper?
For each magnetic sweeper, it’s important to think about what the clean off process is. What are you going to have to do? Are you going to have to wipe it off by hand? Do you pull a lever to clean if off? Does it have a removable sleeve to clean it off? Where does the debris go? How are you going to pick up the debris to get rid of it? What are you going to do with the debris once it’s picked up? Look at what similar buyers say about the product, especially if they are using it in the same conditions you have.