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4 lines DC12V Wired Door Bell door access control system ding dong sound bell with 4 wires without battery for apartment/home
Specifications:
- Wire: 4 wires
- Type: Wired door bell
- Security Mode: Fail Safe
- Power Supply: DC 12V
- Place of Origin: Guangdong, China (Mainland)
- Model Number: B04
- Material: Fireproof ABS
- Direction: None
- Dimension: 88*24*62mm
- Communication Interface: Wired
- Brand Name: OBO HANDS
- Application: Hotel/ home/ apartment/ villa/ office/ door access control system,etc
- Free shipping
- 100 days returns
- Low prices
- 5 million products