Wireless Doorbell for Access Control Systems

WDB04 is a wireless doorbell designed to work seamlessly with ZKTeco access control devices, providing a convenient visitor notification solution. Operating at 433.92MHz with advanced ASK superheterodyne co-frequency coding technology, it ensures stable and interference-free signal transmission.

With 38 selectable ringtones and 4 adjustable volume levels, WDB04 allows flexible customization to suit different environments. Its ergonomic and compact design enables easy installation, making it an ideal accessory for enhancing visitor management and security systems.

Key Specifications:
Power Supply: DC 4.5V (3 ? AA Batteries)
Operating Frequency: 433.92MHz
Technology: ASK Superheterodyne Co-Frequency Code
Power Consumption: = 0.5W
Reception Range: 8m