Hi,
It's just a basic one I got from Amazon: https://www.amazon.co.uk/gp/product/B07NTZTMBG/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
It seems to pick up coins, nails etc well enough but it also goes off with the thing pointed at my chest! I made sure not to have any metallic items on my person. Does that indicate a possible problem with the detector?
Thanks
Charlie