How to calibrate zigbee temp sensor

Configuration
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1

I have a sonoff zigbee temperature sensor connected to a tasmota flashed sonoff zigbee bridge which connects to HA via ZHA.

The temperature reading is around 4c higher than it should be, how can I calibrate it or add an offset?

2

Use a template sensor.

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3 
sensors:
  kitchen_temperature:
    friendly_name: Kitchen temperature
    unit_of_measurement: "°C"
    value_template: '{{((states.sensor.kitchen_motion.attributes.temperature)-4)|round(1)}}'
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