
Detect Fever Early.
Automate Herd Sorting.
Commercial-grade IoT smart ear tags starting at just 8g. Track continuous body temperature trends (±0.5℃ accuracy), log activity pedometer spikes, and sync ISO HDX RFID data directly with automated drafting gates.
Why Commercial Dairies Choose Smart Ear Tags
Ultra-lightweight biometric nodes engineered to replace manual probing and streamline herd drafting.
Early Fever Warnings
Continuous thermal trend monitoring (0°C–60°C range) with ±0.5℃ sensor accuracy. Identifies systemic fever spikes up to 48 hours before clinical symptoms manifest.
HDX RFID Compliance
Incorporates ISO 11784/11785 Half-Duplex (HDX) RFID chips, allowing automatic sorting gates, parlor antennas, and TMR feeders to identify individual stock effortlessly.
Ultra-Low Ear Strain
Ultra-lightweight models starting from only 8g with optimized ear pin geometry, practically eliminating tissue necrosis, ear dragging, and tag loss.
Hardware Series Configurations
Factory-tested tag configurations engineered for specific housing types and communication infrastructures.

S316 / S333 / S300 Series
BLE Mesh / High-Density Barns
High-frequency biometric nodes utilizing Bluetooth Low Energy (100m stable gateway range, 200m LOS). Includes S316-P-B E-Doctor (8g, ±0.5℃, IP68, 48-mo battery) and S333-P-B 3-in-1 (21g, HDX RFID, step pedometer).
- ✓ IP68 / IP67 Rating (-30°C to +60°C)
- ✓ Hourly Default Uploads (Adjustable)
- ✓ 18 to 48 Months Battery Life

S103-P-N / S204-P-L Series
NB-IoT & LoRaWAN Radio
Engineered for free-range livestock. S103-P-N Rocket connects directly to NB-IoT cellular towers without local gateways (24g). S204-P-L Sniper operates over LoRaWAN with a 2km stable gateway range (13g).
- ✓ Bi-hourly Default Uploads & Pedometer
- ✓ IP67 Dust & Waterproof Casing
- ✓ 24 Months Standby Battery Life

4G Multi-Positioning Tag
GPS + AGPS + Wi-Fi + LBS
Equipped with a solar charging panel and 600mAh Industrial Lithium Polymer battery. Features 4G Full Netcom (LTE-FDD/TDD), 3D acceleration sensor, vibration alarm, and dual-color LED status indicator (45g, IP65).
- ✓ Solar Powered / Continuous Standby
- ✓ Built-in 3-in-1 SIM Card Slot
- ✓ Operating Temp: -20°C to +70°C
Actual Product Portfolio & Models
Compare exact factory models derived directly from engineering spec sheets.
Engineering Deep Dive & Machinery Integration
Hardware engineered to withstand farm moisture, feeding friction, and automated chute collisions.
Seamless Machinery Integration
An ear tag is an active biometric sensor. NexAgri feeds live HDX RFID and vital metrics directly into automated sorting gates, parlor entrance antennas, and TMR precision feed systems without human data entry.

Total Cost of Ownership (TCO) & ROI Planning
Evaluating financial payback and operational benefits before hardware procurement.
1. Involuntary Culling & Disease Early Detection
Late disease detection is a leading driver of involuntary culling in commercial dairies. By recording relative temperature trends continuously, NexAgri-Sense S316 tags flag fever spikes up to 48 hours before physical symptoms manifest.
Early therapeutic intervention lowers veterinary bills, reduces antibiotic usage, and prevents herd-wide disease outbreaks.
2. Shortening Open Days & Insemination Timing
Every missed heat cycle incurs significant costs in lost milk yield and extra feed requirements across 21 extra open days.
Integrated pedometers log continuous step activity spikes, alerting managers to the exact artificial insemination window to improve overall conception rates.
3. Labor Savings via Automated Sorting
Manually identifying and separating sick or in-heat cows requires substantial labor hours. Built-in ISO HDX RFID tags automatically trigger drafting gates as cows exit the parlor, routing flagged animals into treatment pens without stopping herd flow.
Projected Payback Timeline
Field-Proven Deployment Scenarios
Commercial setup references from intensive dairies and extensive ranches utilizing NexAgri-Sense infrastructure.

Range Beef Herd Tracking Reference

Pasture Health & ID Reference
Open API Architecture for Integrators
We avoid closed software ecosystems. Stream NexAgri-Sense telemetry directly into your farm ERP via MQTT brokers, Webhooks, or REST API endpoints.
Real-time health telemetry and temperature spike alerts.
Instant HTTP callbacks upon abnormal fever or heat triggers.
Full documented interface for historical herd data sync.

Reviewed by Cathy Xu
Sales Director, NexAgri Solutions
Expert in engineering turnkey dairy projects, automation integration, and heavy agricultural equipment sourcing for large-scale commercial farms worldwide.
Technical Frequently Asked Questions
Technical answers regarding ear tag temperature measurement, battery life, and RFID compatibility.
How accurate is ear tag temperature measurement compared to rectal probes?
Can the built-in RFID sync with third-party sorting gates?
What is the battery lifespan, and how are tags replaced?
How do you dispatch and commission overseas ear tag deployments?
Ready to Digitize Your Herd's Vitals?
Stop guessing. Submit your herd size and barn layout requirements. Our engineering center will supply a customized IoT network design and factory-direct B2B quotation within 24 hours.
Factory direct supply for 50 to 50,000+ Head Operations.
