RTKSA plant room thermostats were specially developed for use in industrial halls, exhibition halls, air halls and greenhouses. When used as a frost protection controller, the higher tolerances at the end of the scale must be observed.

RTKSA-100.010 -10 to + 40 deg C, TR external setting
RTKSA-101.010 -10 to + 40 deg C, TR internal setting
RTKSA-100.110 0 to + 50 deg C, TR external setting
RTKSA-101.110 0 to + 50 deg C, TR internal setting

Compared to the old models:

JET-40 0 to +35 deg C RTKSA-100.010 -10 to +40 deg C
JET-40F 0 to +35 deg C RTKSA-101.010 -10 to +40 deg C
JET-41 0 to +70 deg C RTKSA-100.110 0 to +50 deg C
JET-41F 0 to +70 deg C RTKSA-101.110 0 to +50 deg C