Tasmota sonoff zigbee MQTT temperature and humidity sensor problem

[VDRainer]

This should work for you.

MQTT Sensor / Template: How to "hold" value until next correct value arrives?

Just give the sensor it’s own value. - platform: mqtt state_topic: "home/rtl_433" name: "Aussen Temp Nexus" unit_of_measurement: "°C" value_template: > {% if value_json is defined and value_json.id == 137 %} {{ value_json.temperature_C }} {% else %} {{ states('sensor.aussen_temp_nexus') }} {% endif %}