Fast shipment, arrived within one months after I made the order. Works OK, but detection is not reliable if you are further than approx 1m
I have not yet had time to try it, but trust the seller and intend to believe the product works as it should. Even if it takes a while before the products arrive, there is absolutely nothing that the seller can afford. It is the long postal service and its own postal supplier in the country that always takes time. I made the order 20201010, it was mailed only three day's after that, then arrived in Sweden 20201019 and was in my mailbox 20201202.