Looking for an RF anti-theft device that makes a sound when separated (no Bluetooth and no internet)

I’m looking for a radio frequency (RF) device, not using Bluetooth and without the need for internet. I need two small devices that are designed for anti-theft purposes. When they are too far apart, both of them should make a sound, and when they are close together, the sound should stop. It’s essentially to monitor the distance between two items, and if they’re separated, it alerts me immediately — like a basic anti-theft system. I’ve searched quite a bit online, but I haven’t been able to find anything like this. Does anyone know if such a product exists or have any suggestions on where I might find it? Maybe an off-the-shelf solution, or some ideas on how to build one myself? submitted by /u/Lunatic_Chick69 [link] [comments]

Mar 16, 2025 - 23:39

I’m looking for a radio frequency (RF) device, not using Bluetooth and without the need for internet. I need two small devices that are designed for anti-theft purposes. When they are too far apart, both of them should make a sound, and when they are close together, the sound should stop. It’s essentially to monitor the distance between two items, and if they’re separated, it alerts me immediately — like a basic anti-theft system.

I’ve searched quite a bit online, but I haven’t been able to find anything like this. Does anyone know if such a product exists or have any suggestions on where I might find it? Maybe an off-the-shelf solution, or some ideas on how to build one myself?

submitted by /u/Lunatic_Chick69
[link] [comments]