luberhill wrote:
So it won’t hurt the fridge ??
Inanimate electrical devices in your RV can't be "hurt" but certainly can be damaged by excessively low voltage.  TRC has chosen 102 vac as the low voltage threshold at which it will disconnect power to the rig, Progressive Industries EMS units are set for 104 vac.  It's your choice as to whether you want to risk plugging in without protection - many do, mostly I suspect because they don't understand the risks, others of us who do understand have invested in an EMS.  Others choose a different solution by using a voltage booster that will increase voltage at certain preset thresholds.  Your choice - nothing at all, EMS, voltage booster, or both.