nostr:npub160t5zfxalddaccdc7xx30sentwa5lrr3rq4rtm38x99ynf8t0vwsvzyjc9 made a very solid recommendation. I run several of those.
This link below shows all of the currently supported devices.
I will go on a limb and assume you are in the US, in which case you would want a 915 mhz device. This also matters for upgrading the antenna if you go down that path. In other regions you would want a different frequency for the device.