Aha. A SainLogic product, I see.
The Sonoff RFBridge running Tasmota will dump raw packets from their 433 MHz weather station. But capturing those packets and decoding them as sensors into Home Assistant is a significant bit of development effort. See this web page for an example and Github page of someone who did a very complete job researching and decoding their 433 MHz data and doing it with an ESP8266.
I’m trying (and not entirely succeeding) at converting Axlan’s 8266 firmware to ESPHome, specifically to get Home Assistant compatibility. I just got started a week ago, and don’t have it running yet. It will probably be a few more weeks before I get something barely workable.
Wish I could give you better news.