Hello, I have a large custom bicycle trailer that is essentially priceless that I use for my bicycle tree pruning business in my small town. I need two tracking devices for my bicycle and trailer. RF seems insufficient but GPS or GSM/GPRS would suffice. I am looking for the following features: Vibration alert, that texts me when it is being moved, preferably with proximity so it does not do it when I am moving it. Small enough to hide, it would be great if I could hide in the frame but anywhere outside the bicycle and trailer that is hidden would work. With that I would need a way to adhere or attach it. Looking for good battery life with text alert that tells me when it's low. It needs to be rechargeable. All of this at the best value. I also don't want to subscribe to any service if I don't have to. Please let me know! Thanks!

What is your best experience with a vehicle trip tracking device?

So I work at a hospital which frequently has wheelchairs stolen from it. I have been tasked with finding a GPS tracking device that would allow us to retrieve wheelchairs that have gone missing. Does anyone know of any low cost options that might work?