GPON module SFP Advice

Hello
I use fiber optic internet at home.
the service provider has its own device,

Device Type: HG8245X6-10
Description: OptiXstar HG8245X6-10 GPON Terminal CLASS B+

1 single fiber optic wire is connected to this device, current speed is 1 gigabit and I do not know its distance to the switchboard.

The ont field of the device panel contains the following information;
1.png

i have Mikrotik RB4011iGS+5HacQ2HnD-IN

without any compatibility issues which fiber module should I buy for this device, what should i pay attention to?

Can you support me on this?

I learned how to setup the GPON SFP from this GitHub repository
https://github.com/Anime4000/RTL960x
It also has recommendations on which SFP to usehttps://www.aliexpress.com/item/1005003515662920.html