All i need to do is check for PM (neodymium) proximity/existence at as much as 12" away.
I've tried linear bipolar HEs, and i get 1-2" max. Digging outside my familiarity zone, I've found 3axis magnetometers. But at their price point i need to know which specs to look for to ensure that level of sensitivity.
Adding to this, the neo magnets arent huge, some as small as 5mm.
Mostly for a feeding system tho avoid one piggy cat from eating all the "snack throughout the day" cat's food, i habe other ideas of i can get a group of parts together that work well together...
TIA
I've tried linear bipolar HEs, and i get 1-2" max. Digging outside my familiarity zone, I've found 3axis magnetometers. But at their price point i need to know which specs to look for to ensure that level of sensitivity.
Adding to this, the neo magnets arent huge, some as small as 5mm.
Mostly for a feeding system tho avoid one piggy cat from eating all the "snack throughout the day" cat's food, i habe other ideas of i can get a group of parts together that work well together...
TIA