Generic rain sensor to HA - Is this 433 supported by integration?

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Hello,
I bough a rain sensor with a receiver to a friend that has broken, the senso is OK and I thought I could re-use it in my HA solution.
The sensor looks like this: https://encrypted-tbn0.gstatic.com/shopping?q=tbn:ANd9GcREguYNR_DT4aShT-LflUCsL4STyIPXs0O-yrFjesk_fQEujoTy3BTCiEWiilc5EG9sf59LiXXu7_2h2vH1QPo1FvM4iJr6W0vrIArddL8o4OaY-xZRmg13ew&usqp=CAE

I am using RfxTrx for the 433 devices - any way to get this sensor in to HA or is this now just electric vaste…

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Looks similar to this one:

No clue about RfxTrx.