It looks like they are using the DigiMesh 2.4GHz protocol (I couldn't find the RF frequency in the docs you linked to, but I think DigiMesh is commonly used in the 2.4GHz band). Here are similar modules:
An interface wireless frequency sensor is a device that can detect and measure the frequency of wireless signals, such as WiFi or Bluetooth, and send that information to a connected device, such as an Arduino microcontroller.
The interface wireless frequency sensor typically connects to the Arduino through a digital or analog pin, and uses specific communication protocols, such as SPI or I2C, to transfer the frequency data. The Arduino then processes this data and can perform various actions based on the sensor readings.
Some common applications of using an interface wireless frequency sensor with Arduino include building wireless signal strength meters, detecting and analyzing wireless interference, and creating smart home devices that can automatically connect to and control different wireless devices.
It is important to choose an interface wireless frequency sensor that is compatible with the Arduino microcontroller you are using. Additionally, it is recommended to select a sensor with a frequency range that meets your specific project needs.
Some limitations to consider when using an interface wireless frequency sensor with Arduino include potential interference from other wireless devices or signals, and the need to properly calibrate and configure the sensor for accurate readings. It is also important to ensure that the sensor is not damaged or malfunctioning, as this can affect the accuracy and reliability of the data it provides.