Help with a cat locator

We have a cat that gets out on occasion. Maybe once per year or less. When he gets out, he’s gone for days and won’t respond to anything. He has hidden up under a car and almost gotten killed that way.

Anyway, we need a simple cat locator. All the ones I see online so far are the high tech GPS deals that are $100 plus $8/mo. Or more.

He doesn’t get out often enough to warrant that cost. I was thinking more along the lines of a keyless remote for a car. Click the button, hear a beep. See light flash. Keep wandering and clicking until the thing is found.

Help? Thanks!

Tile.
They don’t mention what the range is though.