LD2410c Light Sensor: Why does it not have a unit of measurement?

ESPHome
1

the codes I’ve seen to configure a ld2410c light sensor doesn’t have a unit of measurement, and Home Assistant keeps asking me to set one. Should I set it to lx (lux) or is there a reason there is no unit?

code used is:

number:
  - platform: ld2410
    light_threshold:
      name: Light Threshold

sensor:
  - platform: ld2410
    light:
      name: Light Level
2

There’s no unit because it doesn’t have unit. It’s just a value 0-255.
You can give it any unit you like.
unit_of_measurement: "my_unit"
You can try to convert/calibrate it to lux with sensor filters.