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China Suppliers Factory NFC Passive Smart Lock - Battery-Free, Maintenance-Free & High-Reliability Access Control
Product Overview
The 40NFC Passive Smart Padlock solves the pain points of traditional active smart locks (such as external power supply/battery dependency, complex maintenance, and poor anti-interference performance).
It operates by harvesting energy from mobile phone NFC, achieving battery-free, maintenance-free, and high-reliability access control.
Product Models
| Model | Description |
|---|---|
| CRT-NSG200NFC | Plastic housing |
| CRT-NJG200NFC | Middle-frame metal housing |
| CRT-NSG200-J | Built-in mechanical lock cylinder |
Technical Specifications
| Parameter | Specification |
|---|---|
| Lock Beam Material | 304 Stainless Steel |
| Lock Body Material | ABS + PC |
| Working Voltage | 2.2V ~ 3.3V |
| Working Current | < 100mA |
| Operating Temp/Humidity | -40℃ ~ 80℃; 20% ~ 98% RH |
| Switching Cycles | ≥ 20,000 times |
| Power Supply | Mobile Phone NFC Energy Harvesting |
| Protection Level | IP65 |
| Unlocking Time | ≤ 2 seconds |
| Key Protection | National Cryptographic Standard 4 |
| Operating Distance | Tap Distance ≤ 1cm |
| Working Frequency | 13.56MHz |
| Core Features | Battery-free, Maintenance-free, High Reliability, Eco-friendly |
Precautions
- 1 Align the mobile phone’s NFC area with the padlock’s NFC zone (marked "This side outward" on the lock body).
- 2 The padlock harvests energy via NFC and receives the unlock command.
- 3 Hold the lock body and pull down the lock beam to unlock.
Frequently Asked Questions
How does the passive smart padlock work without a battery?
The padlock operates using NFC energy harvesting technology. When you place an NFC-enabled mobile phone close to the lock, it draws the necessary operating power directly from the phone's NFC signal to authorize and complete the unlocking process.
What is the effective operating distance for unlocking?
The effective operating distance for NFC energy harvesting and communication is a tap distance of 1 cm or less. Make sure your phone's NFC antenna area is aligned directly with the designated NFC zone on the padlock.
Can the padlock withstand harsh outdoor environments?
Yes. The padlock is built with an IP65 protection rating, making it dustproof and water-resistant. It can reliably operate in extreme temperatures ranging from -40℃ to 80℃ and humidity levels between 20% and 98% RH.
What security standards does the key protection follow?
The padlock utilizes high-security data encryption that complies with the National Cryptographic Standard Level 4, ensuring robust protection against unauthorized decoding and access.
What is the expected physical lifespan of the padlock?
The padlock is designed for heavy-duty usage and is rated for a minimum of 20,000 switching cycles. Combined with its battery-free and maintenance-free design, it offers a long operational lifetime.