Continuous reporting Temperature and Humidity sensor

I want to continuously monitor the temp and humidity of a room in Home Assistant.

I was looking at si7021 on Amazon, and there appears to be a “sensor” which looks like a traditional sensor with a jack plug, and a breakout board.

Is the breakout board the actual sensor itself? It doesn’t look like a sensor.

Here’s the datasheet for the sensor that’s on that board. Si7021 datasheet

the square tab with the white face is the sensor

see also BMP280 pressure temp humidity sensor:


and MCP98908 temp sensor: