PWR-AC-QUALAC Power Quality Sensor
voltage · frequency · THD
patented — for edge infrastructure
Detects short & long power failures, sags, swells & spikes.
Harmonic voltage distortion (THD) per IEEE 519-2014.
Frequency fluctuations, with 0.2s voltage sampling.
Covers up to 85% of the most common power quality issues.
Plug & play in any socket — no electrician needed.
Standalone via micro USB, or connected to the base unit.
BMS ready via Modbus TCP, BACnet IP & Modbus RTU.
SNMP for NMS/DCIM & MQTT for IIoT.
Harmonic voltage distortion (THD) per IEEE 519-2014.
Frequency fluctuations, with 0.2s voltage sampling.
Covers up to 85% of the most common power quality issues.
Plug & play in any socket — no electrician needed.
Standalone via micro USB, or connected to the base unit.
BMS ready via Modbus TCP, BACnet IP & Modbus RTU.
SNMP for NMS/DCIM & MQTT for IIoT.
At a glance:
Input: 100-240 VAC, single phase
Coverage: up to 85% of common PQ issues
Setup: plug into any socket — no electrician
What It Detects
Failures, sags, swells, spikes, THD per IEEE 519-2014 and frequency fluctuations — sampled every 0.2 seconds, translated into actionable information.
Plug & Play — No Electrician
Connect the included power cable to any socket and monitoring starts. No panel work, no electrician, no downtime to deploy.
80% Happens Behind the Meter
Three-phase metering at the switchboard misses the single-phase edge where the critical loads actually run. This sensor monitors that edge.
Know Your PQ Issues
Sags, swells, fluctuations, harmonics and flicker — what each one is, what causes it and what it does to your equipment.
How It Works
One RJ45 cable to the base unit for data & power, one UL Listed power cable into the socket being monitored. That's the whole installation.
Alerting & Integration
Live power quality data with immediate alerts via email, SNMP traps & optional SMS — straight into your BMS over Modbus TCP, BACnet IP or Modbus RTU.
How-To Video
A 70 second guided tour of the power quality sensor: its use cases, how it connects and what the readings look like.
Technical Specifications
Full detection, electrical, environmental, physical and connectivity specifications for the PWR-AC-QUAL.
Plug & Play — No Electrician Needed
Traditional power quality monitoring means an electrician, panel access and a shutdown window. This sensor means a power socket:
- Connect an IEC C13-C14 cable from the sensor into the wall outlet you want to monitor.
- Monitoring starts as soon as it is powered — industry standard analysis, translated into simple, actionable information.
- Move it freely: plug it in anywhere in the facility to check the power quality at that specific point.
- Two operating modes: standalone with data retrieval via the micro USB port, or connected to the base unit for live monitoring and alerting.
80% of Quality Issues Happen Behind the Meter*
Power quality problems are one of the major causes of unplanned downtime, loss of data, malfunction and damage of equipment — and they shorten equipment lifespan even when nothing visibly fails.
While some industrial and commercial facilities have three-phase power quality monitoring at the switchboard, they are not monitoring the single-phase edge of the facility — and that is where the critical components run, especially in today's digital age.
While some industrial and commercial facilities have three-phase power quality monitoring at the switchboard, they are not monitoring the single-phase edge of the facility — and that is where the critical components run, especially in today's digital age.
- Monitor the point that matters: plug the sensor in at the rack, the machine or the control panel and see the power quality that equipment actually receives.
- Complement, don't replace: combined with traditional PQ meters, it completes the picture from the incoming feed to the last socket.
- Settle disputes with data: when equipment misbehaves, the event log shows whether power was the culprit.
* Source: LPQI survey & EPRI study.
How It Works
The power quality sensor connects to the base unit using a standard RJ45 network cable, which transmits data and power between the two.
The sensor comes with a 1.5m / 5ft UL Listed 3-pin power cable: one end into the sensor, the other into the power socket to be monitored. From that moment the sensor continuously analyzes the voltage and total harmonic distortion at that point.
The sensor comes with a 1.5m / 5ft UL Listed 3-pin power cable: one end into the sensor, the other into the power socket to be monitored. From that moment the sensor continuously analyzes the voltage and total harmonic distortion at that point.