Technical specifications indicate this unit utilizes a sub-GHz 433.92MHz radio frequency and ASK modulation to ensure signal propagation through structural barriers. The transmitter housing features a silicone gasket seal to achieve an IP55 rating, protecting the internal PCB from particulate matter and vertical water ingress. Audio output is generated by a CMOS sound chip with a library of 52 melodies, while a built-in memory function preserves volume and tone selections during AC power loss. The system is designed for zero-latency operation, bypassing the 2.4GHz Wi-Fi spectrum entirely to avoid signal congestion.
Material analysis of the transmitter battery reveals a CR2032 lithium chemistry, which may experience a voltage drop in environmental temperatures below -10°C, potentially affecting signal strength. The receiver is a plug-in AC module that supports multiple volume steps. As this is an analog-digital hybrid system, it lacks support for bidirectional audio or remote smartphone alerts. The hardware is optimized for localized acoustic notification without the need for network configuration or subscription-based cloud services.
Functional feature highlights include:
- Transmission Protocol: 433.92MHz RF
- Acoustic Options: 52 Melodies
- Ingress Protection: IP55 (Transmitter)
The AVANTEK Wireless Doorbell Kit excels in simplicity, but those requiring the ability to speak with visitors should investigate wireless video doorbell systems. This unit is a representative model of localized doorbell bundles with chimes designed for residential utility.
