How do I read data from usb serial port?

Question

I'm trying to read data from the USB serial port. It is a thermometer scanner. The connection was successful but I don't know how to read the result data. I'm getting the result like the image below. How do I decode the data?

Here is my code.

const reader = port.readable.getReader();

// Listen to data coming from the serial device.
while (true) {
  const { value, done } = await reader.read();
  if (done) {
    // Allow the serial port to be closed later.
    reader.releaseLock();
    break;
  }
  // value is a Uint8Array.
  console.log(value);
}