Features 1、The product is non‑contact card reading, response speed ≤0.2 seconds, reading distance up to 50cm, sensitive response. 2、The product has stylish and compact appearance, small and square shape, suitable for indoor desktop placement. 3、The product has multi‑protocol compatibility, support for ISO18000‑6C and ISO18000‑6B standards. 4、The product adopts a scientific and technological circle‑shaped LED indicator light. 5、Using USB interface, the wire is about 1.4m unfolded, no need to install the driver to connect to the computer, plug and play. 6、Built‑in 2dbi circular polarized antenna, output power 12.5dBm~26dBm (software adjustable). Specification Item Type: 915mhz UHF Reader Working Frequency National Standard (920~925MHz) US Standard (902 ~928MHz) Label Agreement ISO18000-6C (EPC GEN2) ISO18000-6B Frequency Hopping Method Broad spectrum frequency hopping (FHSS) or fixed frequency, which can be set by software; Antenna Parameters 2dBi circular polarization antenna (built-in) Output Power 12.5dBm~ 26dBm (software adjustable) Reading Distance Maximum reading distance of tags: 0.5 meter (related to factors such as transmit power, antenna type, tag type and application environment) Maximum distance for writing tags: 0.2 meter (depending on factors such as transmit power, antenna type, tag type and application environment) Reading Distance Active mode Passive mode Answer mode (not recommended) External Interface Power Interface: DC +5V Communication Interface USB virtual keyboard USB virtual serial port (need to be customized) Working Environment Operating Temperature: -20℃~55℃ Storage Temperature: -40℃~85℃ Material: Metal + Glass Power Adapter: USB powered Power Cable: Equipped RS-232 Signal Line: Equipped Development Kit: Provide SDK Size: Approx. 104 x 15 x 70mm / 4.1 x 0.6 x 2.8in Package List 1 x Reader 1 x Data Line