Reliable power distribution with no frills, just 100% performance, guaranteed for life. Geist basic PDUs come in surge, non-surge, IEC and NEMA configurations. Incorporate an optional current or power meter to get instant power usage feedback to help you avoid overloads and costly downtime when adding, removing or adjusting equipment.Reliable power distribution with no frills, just 100% performance, guaranteed for life. Geist basic PDUs come in surge, non-surge, IEC and NEMA configurations. Incorporate an optional current or power meter to get instant power usage feedback to help you avoid overloads and costly downtime when adding, removing or adjusting equipment.