USB RFID Reader 125KHZ EM4100 / TK4100 Card Tag ID Reader With 5pcs Keyfobs

As an RFID tag reader, it works well. Plug into USB port (I tried Win 10 and, Raspbian), open a text editor, scan a tag, it reads the tag ID and squirts it to the text editor. I followed instructions from another very kind reviewer: (Alex in Germany said: If you want to control the device under Linux e.g. a Raspberry Pi can intercept the input e.g. with the python “evdev” module with the command: dev = evdev.inputDevice (“/dev/input/by-ID/USB-hxgcoltd_27db-event-kbd”) ) Using this guidance it was straight forward to capture the read-events, send them into my python code and parse to reconstruct the preprogrammed tag number. That capture instruction from Alex should be made more widely available IMHO. It's about 6cm x 9.5cm, light and compact. I didn't subject it to intensive use, so can't talk about durability.

I plugged it in and it worked straight away. Only downside is the case is a little cheap feeling so I'll need to add some weight to it to use it in practice.

Can’t complain for the money. Plugged it in and it worked. Reads from a few centimetres away from the tag.

I bought this expecting it to be a generic reader, that could look at an rfid tag and tell me what was on it. It does not do that! All it does is turn green when one of the specific tags shipped with it come close. It does NOT read the contents of the tag, it does NOT allow writing, and it does NOT allow you to connect it to anything else - the usb is purely for power, and not data. In other words: Useless! It's nothing more than a toy.

Decent reader, which cheap build quality. What you'd expect for such a cheap item. Seeing as it's bottom dollar you're not going to expect a fantastic quality item. We purchased approximately 10 of these and found them all to be fine. Packaging was a simple box. The tokens are a little cheap too, as the backing has a tendency to come off so if you're intending to use them for anything serious you may want to invest in a more robust token.

Great little item to have. Easy to set up and easier to use. Small enough to fit in to your pocket and forget about

Good quality

Only use it to unlock my PC. Probably says more about my lack of imaginative use. The instructions could be clearer.

Il prodotto si presenta bene in una buona confezione di cartone troviamo il lettore, il cavo usb e 5 (cinque) 'chiavi' blu da agganciare al portachiavi. L'installazione è semplice: basta collegare il cavo usb al lettore e poi al pc. Windows riconosce senza alcun problema il lettore. Avvicinando una chiave al lettore esso emette un suono e attiva il led verde se il riconoscimento è positivo e Il codice della chiave viene passato al programma attivo (nel buffer della tastiera).

Er tut exakt was er soll, sehr zuverlässig Die Armbänder, die gekauft habe, sind lesbar. Für den Preis also alles super

Had het graag wat eenvoudiger gezien of toch zeker een beter handleiding

Software downloaden, wo ist angegeben. Software anklicken, läuft sofort, keine Installation. Probiere aus und sei enttäuscht. Starte zusätzlich neue Editor Text Datei und du wirst feststellen das 10stellige Nr. eingelesen und angezeigt wird. Bei mir ist diese angezeigte Nr. eine ganz andere als auf dem blauen eingelesen NTC Chip steht. Aber es ist immer die gleiche. Daher empfehle ich das gutens Gewissen weiter. Selbst von mir getestet ! Unter W 7 P (Ihr wisst schon !) Auch unter W XP P Funktioniert auch ganz ohne Software über Zwischenablage. MFG

Emulano la tastiera, possono quindi essere utilizzati senza alcun tipo di driver (passando una chiavetta inviano il codice seguito dall'INVIO). Li utilizzo sia per un controllo ingressi mediante Raspberry che per l'inserimento dei codici delle chiavi mediante PC