yes i have it like that, but if you do as i say on aquasuite it will go light blue with dark letters

i thanks for your help it's not defective, i found a button on the software with your help that says Invert, when ON it will be black backg and when OFF light blue try it and let me know!

Hi to all! I installed the flow meter, connected it to the USB and it has light blue display with black numbers/letters, soon as i installed the Aquasuite it prompted a Firmware Update and after that it changed to black with letters in white wich is very nice, after some restarts of my PC the light blue came back and i can't find how to change it in device or in the software can anyone help me please? Thanks to All! Sergio