RL-3918B Wireless Remote Control Doorbell
Specifications:
- Model: RL-3918B
- Type: Wireless doorbell
- Power Supply:
- Receiver: 230V / 50Hz (direct socket plug-in)
- Push Button: Battery-operated (battery included)
- Transmission Method: Digital technology (frequency not specified, typically 433MHz)
- Operating Range: Minimum 50 meters (open field)
- Tone Options: 16 selectable tones
- Push Button: Water-resistant, battery-powered
- Technology:
- Digital push button for extended battery life
- Doorbell and push button coding system (expandable)
- Energy Consumption: Low
- Installation: No cable connection required, simple plug-in setup
- Interference: Transmission does not affect other equipment
- Design: Modern and compact
- Additional Features:
- Easy operation and installation
- Expandable with additional push buttons or receivers
RL-3920 Wireless Remote Bell
Specifications:
- Model: 2R3920
- Type: Wireless door chime system
- Power Supply:
- Receiver: 3x LR6 batteries (lasts up to 1 year)
- Remote Control: Battery-powered (lasts up to 2 years, battery included)
- Transmission Method: Interference-resistant digital technology (frequency not specified, typically 433MHz)
- Operating Range: >80 meters (open area)
- Remote Control: Waterproof, IP44 approved
- Technology: Patent energy-saving technique
- Product Weight: 0.8 kg
- Item Condition: New
- Installation: Wireless, no cables required
- Additional Features:
- Long-lasting battery performance
- Simple operation and installation
- Durable design for indoor/outdoor use







