I bought a resistivity device. It works with the Snuffler program. He does not have any information about the vendor program. I installed the snuffs, but I can not use it in any way. There is no video tutorial about Snuffler from beginning to end. Only data transfer is shown, there is no more. If I haven't found it from the internet, can you send me a link with a video tutorial or video tutorial? thank you for your help