Hello, Reading your forum I see that there is a problem of security with caravaning either at home or on tour. Can I pick your brains. I am semi retired but design small electronic devices for the security industry. I would just like to know if anyone on the forum thinks that a DIY security device might be the answer. Don't worry I can't sell you one because I have to make it. But I do have a device that is as loud as a formula one racing car at 3 meters so not a toy and might be adapted for the caravaning community needs. How long should the battery life be off mains charge and any other thoughts would be welcome.