Regulation NO (External devices need: Phase cut-off or inverter) YES (Electronic command onboard) YES (Electronic command onboard) Accurate Regulation of Speed and Air Capacity Scarce Good Excellent Monitoring of Single Fan parameters NO NO YES Temperature Range -40⁰C/+85⁰C -25⁰C/ +70⁰C -25⁰C/ + 70⁰C Noise regulated Cost […]