Ignore sensor values outside of a certain acceptable range

[Benjamin_De_Smet (Mindless)]

Thanks =).

I ended up getting the same result like this:

  - platform: mqtt  
    state_topic: "mymqtt/sensornode1"  
    name: "SN1 Temperature"  
    unit_of_measurement: "°F"  
    value_template: >-
      {%- if value_json.temperature|float >= 40 and value_json.temperature|float <= 120 -%}
      {{ value_json.temperature | round(1) }}
      {%- else -%}
      nan
      {%- endif -%}