The YD-Z400A is a professional, heavy-duty RFID guard tour reader engineered for rigorous security patrol and facility inspection logging. Utilizing 125KHz EM-ID technology, this patrol wand automatically records asset tags with an instant vibration prompt for clear operational confirmation. Built with a rugged aluminum alloy shell and an ergonomic rubber handle, the unit features a built-in impact detection system that logs up to 8,000 impact records to prevent unauthorized hardware tampering or vandalism. With an institutional-grade memory capacity of 40,000 patrol logs, data is seamlessly transferred via a modern Type-C USB interface, providing security integrators and facility managers with an unalterable, transparent audit trail.
Core Engineering Advantages
Heavy-Duty Tamper-Proof Construction
Engineered with a high-grade aluminum alloy outer shell and an impact-absorbing rubber handle. The rugged casing achieves an IP67 weatherproof rating, protecting the internal electronics against severe dust and water immersion within an extreme operating temperature range of -20°C to +70°C.
Impact Logging for Accountability
Features a built-in impact detection system that automatically registers up to 8,000 impact records (dropped or intentionally struck incidents). This impact log enables forensic analysis of device handling, supporting accountability in security operations.
High-Capacity Offline Storage
Equipped with a secure internal flash memory capable of storing up to 40,000 sequential patrol logs offline. Security personnel can conduct prolonged multi-shift deployments before requiring data synchronization.
Efficient Power Management & Modern Connectivity
Powered by a 380mAh rechargeable lithium-ion battery that reaches full operational capacity within 2 hours of charging. The integrated Type-C USB interface ensures rapid data uploads and universally compatible charging.

Technical Specifications
| Parameter | Specification |
| SKU | YD-Z400A |
| RFID Technology | 125KHz (EM-ID Tag) |
| Housing Material | Aluminum Alloy + Rubber Handle |
| Scan Confirmation | Vibration Prompt |
| Log Memory Capacity | 40,000 Logs |
| Impact Record Capacity | 8,000 Logs |
| Ingress Protection | IP67 |
| Data / Charging Port | Type-C USB |
| Battery Specification | 380mAh Rechargeable Li-ion Battery |
| Full Charging Duration | 2 Hours |
| Dimensions | 137mm × φ30mm |
| Net Weight | 100g |
| Operating Temperature | -20°C ~ +70°C |
| Operating Humidity | 30% ~ 95% RH |

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