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Very good, it arrived quickly.
Seems a good remote tester, able to display the operating frequency. I have tested Ok my car key and the garage doors remote, both operating at 433 and 434 MHz. It says in its case that it works from 100-1000 Mhz, but I have not tested it at higher frequencies yet. Also I have not tested its IR capabilities yet but seems limited to IR detection, yes-no; no further info. It came with 9V battery included
A+++++++++++++++
Fast delivery, good packing. Useful, value for money product.
Tutto ok