{"product_id":"rfid-reader-125khz-reads-proximity-em4100-cards-reliably","title":"RFID Reader 125KHz - Reads Proximity \u0026 EM4100 Cards reliably","description":"\u003cp\u003eOur review of this 125KHz RFID reader finds it best for installers and hobbyists who need a simple, driver-free USB solution to read common proximity and EM ID cards. The reader's single biggest strength is versatility: it decodes both the 1326 family ISO Prox cards and EM4100 cards, then outputs the card UID as a keyboard-emulated HID device so it works immediately with Windows, Linux, iOS and Android (OTG). For anyone who needs a plug-and-play card scanner that can be configured to match different system formats, this reader delivers straightforward utility.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual card support:\u003c\/strong\u003e Reads both 125KHz 1326 family proximity cards and EM4100 ID cards so a mix of site credentials can be handled by one reader.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHID USB plug-and-play:\u003c\/strong\u003e Acts as a keyboard device with no driver required, making it compatible with Win, Linux, iOS and Android (OTG) right away.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfigurable output formats:\u003c\/strong\u003e Offers up to 40 output formats for EM4100 UID presentation, letting installers match the target system without extra software.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRaw Wiegand option:\u003c\/strong\u003e Can send raw Wiegand bit data from 24 to 80 bits to help diagnose or integrate 1326 family cards with legacy systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeyboard layout support:\u003c\/strong\u003e Supports common layouts such as QWERTY and AZERTY so numeric output maps correctly across platforms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis reader is ideal for system integrators, small business owners, and technicians who need a compact, driver-free 125KHz reader that covers both ISO Prox 1326 family cards and EM4100 formats. The configurable formats make it especially useful when you must adapt UID output to specific software, access control panels, or databases.\u003c\/p\u003e\n\u003cp\u003eIt is less suitable for teams who need writable card functionality or a long-term managed provisioning solution; this unit is read-only and meant for decoding and presenting existing card UIDs rather than issuing or encoding credentials.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWide card compatibility covers both EM4100 and 1326 family proximity cards, reducing the need for multiple readers.\u003c\/li\u003e\n\u003cli\u003eDriver-free HID USB operation provides immediate compatibility with major OS platforms and Android OTG hosts.\u003c\/li\u003e\n\u003cli\u003eExtensive format options and raw Wiegand output make it flexible for integration and troubleshooting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConfiguration is done with a config card and some users report the instruction material can be confusing, which may require trial and error.\u003c\/li\u003e\n\u003cli\u003eSettings may sometimes need reapplying after power cycles according to some user reports, so it may not be ideal where fully persistent config is critical.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency\u003c\/td\u003e\n\u003ctd\u003e125KHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCard support\u003c\/td\u003e\n\u003ctd\u003e1326 family ISO Prox and EM4100 ID cards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput modes\u003c\/td\u003e\n\u003ctd\u003eUp to 40 UID formats or raw Wiegand (24 to 80 bits)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eHID USB keyboard emulation (driver free)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOS compatibility\u003c\/td\u003e\n\u003ctd\u003eWindows, Linux, iOS, Android (OTG)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKeyboard layouts\u003c\/td\u003e\n\u003ctd\u003eQWERTY and AZERTY supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe reader is a practical, cost-effective choice for anyone who needs a versatile, driver-free 125KHz scanner that handles both proximity and EM ID cards. It is especially good value for installers and small sites that require configurable UID output or raw Wiegand for integration; however, those needing writable cards or foolproof configuration persistence should consider specialised encoders instead.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this work with Android phones?\u003c\/strong\u003e\u003cbr\u003eYes, it works with Android devices that support OTG and a suitable OTG adapter; the device appears as a keyboard.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it write or program cards?\u003c\/strong\u003e\u003cbr\u003eNo, this unit is read-only and decodes existing card UIDs; it cannot write or encode card data.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow are formats changed?\u003c\/strong\u003e\u003cbr\u003eOutput formats are set using a configuration card provided with the reader so you can select one of the 40 UID formats or raw Wiegand output.\u003c\/p\u003e","brand":"FissaiD","offers":[{"title":"Default Title","offer_id":48184914542811,"sku":"B07TMNZPXK","price":42.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51apcwog5HL._AC_SL1000.jpg?v=1769528187","url":"https:\/\/gearmusthave.com\/products\/rfid-reader-125khz-reads-proximity-em4100-cards-reliably","provider":"GearMustHave","version":"1.0","type":"link"}