Low-frequency card is the frequency in 100-125KHz cards, typically 125KHz, common market, HID, EM technology. Chip types of low-frequency card: EM4100,4200, TK4100, T5567 / T5577, HITAG2, EM4305, EM4205 low-frequency low-band RF reader works referred to as low-label label, and its operating frequency range of 30kHz ~ 300kHz. Typical operating frequencies: 125KHz, 133KHz. Low frequency cards generally passive cards, which work by inductive coupling energy obtained from the radiating near-field coupling coil of the reader. When transferring data between the card and reader low frequency, low-frequency card reader antenna radiation must be located near-field region. Read LF tags of less than one meter distance under normal circumstances. Advantage is mainly reflected in the low-frequency card: card chips generally use ordinary CMOS process, with energy saving, low-cost features; operating frequencies from radio frequency control constraints; can penetrate water, organic tissue, lumber and the like; ideal for close-up , low speed, the amount of data requires less application. ? Low-frequency card disadvantage is mainly reflected in: rare card data storage capacity; only for low-speed, close-recognition application; compared with the high-frequency reader: Card antenna turns more and more expensive number. Mainly used in the low-frequency card attendance and access control hotel door label animal production management. Shenzhen cartoon smart card company, specializing in the production of smart cards, chip cards, IC cards, ID cards, magnetic stripe cards, membership cards, VIP cards, VIP cards, loyalty cards, U disk cards. Our company based on domestic and foreign throughout the country, to introduce the most advanced equipment, Heidelberg four-color offset press, using advanced printing ink, HD fidelity, bright color, do not fade, do not fade, ten professional card, tried and tested, the largest card manufacturers. We focus on quality, provide quality services, the company's strong productivity, well-equipped, cheap and fast shipping, global shipping! Seiko secret agents, gold quality, stand the world! Service hundred satisfied hundred in cartoon smart card that you deserve! Welcome to consult the list: cartoon Shenzhen Smart Card Technology Co., Ltd. Contact: Zhang 18719272597 QQ: 2638726267 Tel: 0755-25125158 Website: www.zktcard.com Marketing Center: Luohu District, Shenzhen Huangbeiling Rosa Road Yinfeng Building, 5097 an 8A