| Parameter Category |
Detailed Specification |
| Operating Frequency |
125kHz (Low Frequency, LF) |
| Core Chip |
EM4205 (Genuine imported, ensuring stable performance) |
| Memory Capacity |
64-bit ROM, with a unique non-modifiable ID code (guarantees identification uniqueness) |
| Reading/Writing Performance |
Read-only mode (ID card feature); Reading distance: 2-10cm (varies by card reader power & environment) |
| Operating Temperature Range |
-20℃ ~ 85℃ (adapts to complex high/low temperature scenarios, e.g., outdoor access control, industrial warehouses) |
| Card Material |
Standard: PVC; Optional: ABS (wear-resistant), PET (eco-friendly), Paper (disposable scenarios) |
| Standard Size |
CR80 format (85.5mm × 54mm × 0.76mm); Custom special shapes available (keychain, round, cartoon shape, etc.) |
| Surface Process |
Optional: silk screen printing, offset printing, gold/silver stamping, UV printing, dripping glue, scratch-resistant coating (enhances durability & brand texture) |
| Compatibility |
Compatible with all card readers conforming to 125kHz low-frequency standards (e.g., EM4100/4200 series card readers) |
| Service Life |
≥100,000 read/write operations (service life up to 3-5 years under high-frequency daily use) |
| Certification Standards |
Compliant with CE and ROHS international standards (supports export needs in most global regions) |
| Application |
Access Control & Security, Employee Attendance Management, Membership & Retail Loyalty Programs, Asset Tracking & Management, Traceability for Specific Industries, Entertainment & Venue Ticketing, etc |
A1: The EM4205 is a upgraded low-frequency (125kHz) chip based on the EM4100. It retains the EM4100’s stable read-only performance and 64-bit unique ID but adds better anti-interference capability—ideal for noisy environments like industrial warehouses. Both are compatible with 125kHz readers, but the EM4205 offers longer service life (≥100,000 operations) for high-frequency daily use.
A2: We offer full-range customization:
- Appearance: Logo printing, gold/silver stamping, UV printing, or anti-counterfeiting marks.
- Material: PVC (standard), ABS (wear-resistant for industrial use), PET (eco-friendly), or paper (disposable tickets).
- Size: Standard CR80 (85.5×54×0.76mm) or custom shapes (keychain, round, cartoon-style).
- Surface: Scratch-resistant coating or dripping glue for enhanced durability.
A3: For standard unprinted cards, the MOQ is 100 pieces. For fully customized cards (with logos, special materials/shapes), the MOQ is 500 pieces. Small-batch orders (100-500 pieces) are negotiable—we only charge a small customization fee to meet SMEs’ needs.
A4: Yes, it supports global export. The card complies with CE (for European markets) and ROHS (environmental safety) international standards. We can also provide commercial invoices, packing lists, or certification copies to assist with customs clearance in your region.
A5: First, confirm your reader is compatible with 125kHz low-frequency standards. If the issue persists, contact us within 7 days of receipt—provide photos/videos of the problem, and we will offer free replacements or a full refund. For large orders, we also provide pre-shipment sample testing to avoid defects.
A6: Sample production takes 1-3 working days (free for custom designs). Mass production takes 3-7 working days for regular orders (≤10,000 pieces). For large orders (>10,000 pieces), we can adjust the timeline. Delivery via air freight takes 3-7 days globally; sea freight is available for bulk orders (cost-saving for large quantities).
