Technical specifications confirm this doorbell system operates on the 433.92MHz frequency band, a protocol selected for its ability to penetrate steel studs and masonry more effectively than 2.4GHz signals. The transmitter is powered by a 3V CR2032 lithium battery and is housed in an enclosure with a verified IP55 waterproof rating. Receiver modules are designed for direct AC wall connection and utilize a code-learning mode that allows for the pairing of multiple transmitters to a single acoustic output unit. The internal firmware contains a library of 32 distinct tones and maintains volume settings through power cycles.
Aggregated data indicates the system is a unidirectional acoustic appliance, meaning it does not support intercom functionality or visual data logging. RF exposure reports suggest that placement near large metal surfaces or high-power 433MHz devices, such as older garage door openers, may cause signal desensing or intermittent ghost triggers. The hardware architecture is focused on latency-free audio delivery, bypassing the processing delays often associated with cloud-dependent smart home peripherals.
Functional feature highlights include:
- Operational Range: Up to 1000 feet (open air)
- Ingress Protection: IP55 certified
- Expandability: Multi-transmitter support
The PHYSEN Wireless Doorbell provides robust audio range, but for users needing to see their visitors, a wireless video doorbell system is the recommended technical upgrade. Detailed comparative data for similar acoustic arrays can be found in the doorbell bundles with chimes section.
