| Network | Blue tooth |
| Brand name | GRH |
| Unlock way | APP +Fingerprint + Password + Card + Key |
| Application | Home Hotel Apartments Office |
| Color | Black/ORB |
| Port | Ningbo |
| Material | Zinc |
| Power supply | 4 pcs AA alkaline battery |



Fast delivery: We can produce 2000-3000 sets of finished smart door locks per day, and our inventory is usually sufficient.Regular orders can be delivered in 3-5 days.
Customization: We have a professional design team that can customize the
appearance, hardware and software of the product according to your requirements.
Quality control: Every smart door lock undergoes more than 1000 repeat tests before delivery.
Price advantage: With 10 years of production experience, all of our suppliers are long-term partners. We have high-quality and cost-effective raw materials.