On one of our five CRS326-24S+2Q the device temperature can be monitored via SNMP (Zabbix) since ROS 6.48.3. On the other 4 CRS it is "not supported".
They have the same newest Router OS, the same Firmware (6.48.3), the same firmware type (qca9531L) and the SNMP settings on the monitoring server are the same.
The only difference is, that the 326 where the device temperature can be retrieved is a litte bit newer, maybe a half year.
If I filter on the Mikrotik hardware site on "Temperature Sensor" the CRS326 isn't shown.
Does this make any sense?