Power Quality Sensor

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Power Quality Sensor

The compact PQ1 Power Quality sensor easily integrates into your AC power mains with no software required. Once connected, it relays contacts to your control computer's digital inputs. The software will know whenever there is a sag, dip, swell, or impulse on the mains.

The PQ1 is extremely cost-effective, less than 10% the cost of a traditional power quality monitor. It pays for itself very quickly by reducing service calls.


Automatic manufacturing systems, semiconductor tools, medical equipment, elevator controls, and more.


  • Detects sags/dips, swells, interruptions, impulses
  • Built-in international power quality standards
  • Comes pre-programmed with standard thresholds: SEMI F47, ITIC, CBEMA, IEC, ZA, MIL-STD
  • No software required, no computer required
  • Simple to install; AC in, relay contacts out