You can set the temperature settings for the temperature unit with the aTU,U= command.
Averaging time [A]
The averaging time in seconds, resolution 0.5 s. You can set a short averaging time (0.5 s) to reduce the Pt1000 sensor self-heating. The message interval defines how often the measurement starts. The measurement is performed every 0.5 s for averaging time.
The range: 0.5 … 3600
Parameter selection [aIU,R= (bit 1 and bit 9)]
The bits 7 and 14 enable normal and composite message for Aux rain accumulation. You can select the parameters with the aIU command.