MikroTik mtxrGaugeTable temperature sensors report values in whole
degrees Celsius, not tenths. The MIB defines the unit as 'celsius(1)'
without the 'deci-' prefix used for voltage (dV), current (dA), and
power (dW).
This matches LibreNMS behavior which does not apply a divisor to
temperature sensors.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>