Perfect. Works well. Recommend the seller. Arrived very fast
good quality. Nice feel and touch.
Fast shipping. Arrived in 23 days. It features a variation comparing with conventional 1 grade. In ear it is more accurate. Measures environments, surfaces, so adult and a specific to children. Manual included but is very intuitive handling. Ta approved.
It is working properly. I will leave additional comment after I use it for some time...I reccomend this seller.