EM4305 RFID Livestock Ear Tag for Theft Prevention and Traceability
Material: TPU
Frequency:134.2Khz
Size:30mm
Product Name:Animal RFID Tags
Product Introduction
This rewritable 134.2 KHz electronic ear tag is engineered for cattle theft prevention and farm-to-market traceability - two critical requirements in regions where livestock rustling threatens rural economies. Built around the EM4305 read-write integrated circuit, it goes beyond basic fixed-ID tagging by allowing authorized field personnel to update ownership records, vaccination data, and regional registration codes directly on the chip without replacing the physical tag.
The tag body is manufactured from premium TPU (thermoplastic polyurethane) using our in-house injection molding line. This biocompatible material delivers excellent flexibility, abrasion resistance, and UV tolerance, while undergoing multi-step sterilization before shipment to ensure hygiene compliance. Every unit carries a unique serial number for reliable individual identification of cattle, sheep, goats, pigs, horses, deer, and other medium to large animals.
Designed to operate within the ISO 11784/11785 framework at 134.2 KHz with FDX-B modulation, the tag integrates seamlessly with standard handheld scanners and fixed-gate reader systems already deployed in national traceability programs across Africa, South America, and beyond.
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Technical Specifications
| Parameter | Specification |
|---|---|
| Chip / IC | EM4305 (EM Microelectronic, read/write) |
| Operating Frequency | 134.2 KHz (Low Frequency) |
| Protocol | ISO 11784 / ISO 11785, FDX-B |
| Memory | 512-bit EEPROM, configurable blocks |
| Write Endurance | Up to 100,000 cycles |
| Data Retention | > 10 years |
| Read Range | 5–30 cm (reader-dependent) |
| Tag Material | TPU (biocompatible, multi-step sterilized) |
| Tag Diameter | 30 mm (round button type) |
| Color | Yellow (standard); custom colors available |
| Printing | Laser engraving or inkjet numbering |
| Applicable Species | Cattle, sheep, goats, pigs, horses, deer, camels |
| Certifications | CE, ISO 9001, ICAR-compatible encoding available |
What Makes This Tag Different - Anti-Theft and Origin Traceability by Design
Most low-frequency round tags on the market use read-only chips like the EM4100 or TK4100, which store only a fixed 64-bit serial number. Once factory-programmed, that data never changes - making it impossible to record ownership transfers or field-update veterinary data at the tag level. The EM4305 solves this limitation with 512-bit rewritable EEPROM and optional write-password protection, transforming a simple ID marker into an updatable data carrier for anti-rustling enforcement and supply-chain documentation.
Rewritable Chip for Ownership Verification
In open-market livestock trading environments - common across the Sahel, East Africa, and South American cattle corridors - animals frequently change hands. The chip's field-programmable memory allows inspectors and veterinary officers to record and verify the current owner's registration code at each transaction point. Any mismatch between the tag data and the transporter's paperwork raises an immediate red flag, creating a digital chain-of-custody that visual branding alone cannot provide. This writable identification capability is the core differentiator that makes this tag suited for government-backed anti-theft programs.
Tamper-Evident Closed-Head Design
The one-piece male-female snap-lock structure permanently secures to the ear tissue when applied with standard applicator pliers. Removal without visibly destroying the tag is not possible, making unauthorized tag switching detectable at market inspections and roadside checkpoints. This tamper-proof locking mechanism supports anti-rustling enforcement where physical evidence of tag interference serves as proof of unauthorized handling.
Durable TPU Housing for Harsh Grazing Environments
The TPU enclosure resists UV exposure, corrosion, and mechanical wear from brush and fencing - conditions typical in sub-Saharan savanna pastures and South American open-range operations. Our verified tag retention rate exceeds 99% (drop rate below 1%), which is critical for maintaining unbroken digital records across free-ranging herds of 1,000 head or more where re-tagging is expensive and logistically difficult.
ISO-Compliant for National Registry Integration
The 134.2 KHz FDX-B signal structure is the globally recognized standard for electronic animal identification under ISO 11784/11785. This ensures direct compatibility with existing government databases - whether that is Brazil's GTA transport permit system, Botswana's LITS trace-back program, or Senegal's SNISA national registry. No proprietary readers or software adapters are needed; any ISO-compliant scanner will read the tag.
Want to test compatibility with your existing reader system? Request free samples →
Where This Tag Is Deployed - Real Project Scenarios
Syntek has supplied electronic ear tags for several large-scale cattle management programs. The following scenarios reflect actual deployment contexts and the operational needs they address:
Cattle Rustling Prevention in Senegal and Mauritania
Cross-border livestock theft costs Sahelian herding communities millions annually. In these Syntek-supplied projects, each registered animal carries a rewritable LF tag encoding the owner's national registration number. Mobile veterinary patrol teams use handheld 134.2 KHz readers to conduct roadside verification checks - comparing the on-tag ownership data against the transporter's documents. This electronic approach has proven far more effective than visual-only branding methods, which are easily counterfeited.
Botswana's National Trace-Back System for Export Beef
Botswana's LITS program mandates electronic identification before any bovine can be legally traded or exported. Syntek's ISO 11784/11785-compliant tags are deployed in this program, offering a cost-effective alternative to premium-brand products while maintaining equivalent scan reliability and over 99% retention. The writable memory allows field veterinarians to update disease-free zone certifications at the tag level, streamlining the export clearance workflow for EU-bound beef shipments.
Herd Digitization Across South American Rangelands
Brazil's Pará state launched mandatory individual cattle traceability in 2023, and similar programs are expanding across Argentina, Uruguay, and Paraguay. For ranchers managing vast open-range herds, a reprogrammable ear tag with sub-1% annual loss rate is essential - re-tagging across thousands of hectares is not practical. The combination of durable TPU construction and updateable memory addresses exactly this challenge, enabling per-animal digital records from birth through processing.
Market Transaction Verification in East Africa
In Kenya, Tanzania, and Uganda, open-air livestock markets are both economic hubs and potential laundering points for stolen cattle. By recording each sale event in the tag's writable memory block, market authorities can build a verifiable chain-of-title that follows each animal through successive transactions - a capability that read-only tags simply cannot support.
OEM & ODM Customization
Whether you are a regional agricultural equipment distributor, a government procurement agency, or a farm technology integrator, we provide full OEM/ODM services:
- Chip Options: EM4305 (standard), or alternative ICs including T5577 for specific reader compatibility
- Custom Encoding: Sequential numbering, country codes, or ICAR-compliant 15-digit ID numbers pre-programmed before shipment
- Color & Branding: Custom TPU colors (yellow, green, blue, red, white, orange) with your logo or national emblem via laser engraving or inkjet printing
- Applicator Bundles: Tags are compatible with universal ear tag pliers; bundled applicator packages available for project orders
- Packaging: Standard poly-bag or custom branded boxes with numbering registers for inventory control
Frequently Asked Questions
Q1: How does the EM4305 differ from a read-only EM4100 for cattle use?
A: The EM4100 stores only a fixed 64-bit ID that cannot be changed after factory programming. The EM4305 provides 512-bit rewritable memory with up to 100,000 write cycles, making it ideal for applications that need on-site data updates - such as recording ownership changes at markets or updating disease certifications in the field. For basic identification, the EM4100 works; for theft prevention and traceability with dynamic data, the EM4305 is the better fit.
Q2: Are these compatible with my existing scanner?
A: Yes. The tags use 134.2 KHz FDX-B modulation per ISO 11784/11785, which is the universal standard for electronic animal identification. They work with all major brands of handheld and fixed readers. We also offer compatible reader models in our own product line.
Q3: What is the minimum order quantity?
A: Standard yellow round tags are available from stock with no MOQ. For custom-color or pre-encoded orders, the typical MOQ is 1,000 pieces. Government and large-scale project orders receive dedicated scheduling. Contact us for a detailed quotation including shipping.
Q4: Are you a factory or a trading company?
A: We are a direct manufacturer established in 2006 in Hunan Province, China. We own the full production chain - TPU compounding, chip bonding, antenna embedding, ultrasonic welding, and quality testing. Factory visits are welcome at any time.
Q5: What is the delivery time?
A: Samples: 5–7 working days. Bulk orders up to 100,000 pcs: 7–15 working days. Larger volumes (500,000+ units): 15–30 days. We maintain semi-finished inventory to accelerate fulfillment during peak procurement periods.
Q6: Which animals is the 30 mm round tag suitable for?
A: Cattle, buffalo, horses, camels, deer, sheep, goats, and pigs. For smaller species or poultry, we offer alternative sizes and formats including injectable glass capsule microchips.
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