Sndway sw-t4s Laser meter hack!?

Hello, i have problem decoding the signal from Sndway sw-t4s Laser meter( i want to send the data from the meter to Arduino ) but the TX and RX from the board are not active , so i’m trying to capture the SPI from the display of the meter…No luck to decode the signal to something useful :confused: is there anyone who attempted this? BTW i read Mictronics - DIY Electronic projects and more.