PMI

PMI Seeker power quality recorder with yellow NEMA 4X enclosure
angled side view open ports w: transp backgroundpower input view w: transp backgroundUSB-Seeker-5

Seeker™ Power Quality Recorder

Price range: $7,725.00 through $12,540.75

Please call +1 (800) 296-4120 for International Pricing

The PMI Seeker™ is a compact, utility-grade power quality recorder designed for electric utilities, field engineers, and smart grid deployments. Built for both investigative troubleshooting and long-term monitoring, the Seeker combines a full-featured power quality monitor, integrated wireless communications, and optional GPS timestamping into a rugged, field-ready device.

Housed in a durable NEMA 4X weatherproof enclosure, measuring just 5.06”x 3.00”x 1.81”, and weighing under one pound, the Seeker power quality system installs quickly with no external power supply, separate communication device, or protective enclosure required. As a line-powered power monitor, the unit draws power directly from the monitored line, making installation as simple as connecting voltage leads and current transformers. Once installed, the PMI Seeker immediately begins recording and transmitting power quality data.

Please Note: Flex CTs (sold separately) are needed to connect this item.

Get Started Here


Have a PQ Question? Ask Merlin™ — Free

Send it to askmerlin@powermonitors.com or text (540) 383-3144

Features and Benefits

Cloud-Based Power Quality Monitoring

The Seeker streams continuous PQ data to PMI’s PQ Canvass which offers cloud-based power quality monitoring. Using Wi-Fi, Ethernet, or an optional LTE cellular power monitor configuration, the Seeker streams real-time measurements to the cloud where engineers can view live dashboards, event reports, waveform captures, and long-term interval data from any web browser.

Unlike traditional standalone recorders, the PMI Seeker provides unlimited historical storage through its cloud platform while also maintaining onboard memory for local event recording. Automated alerts notify operators of voltage disturbances, power anomalies, or custom trigger conditions via email or SMS.

Smart Grid and SCADA Integration

Designed for modern utility infrastructure, the Seeker functions as both a smart grid power monitor and a distribution line power monitor. It integrates directly with SCADA systems via DNP or MODBUS power monitor protocols over Wi-Fi, LTE cellular, or Ethernet networks.

This SCADA power quality recorder also supports dual Form C relay outputs (optional) and digital inputs, enabling automated control of distributed generation equipment or monitoring of external field devices.

Advanced Power Quality Measurement

The Seeker delivers high-resolution analysis with RMS measurement across four voltage and four current channels. Sampling at 4,166 samples per cycle, it is a true RMS voltage current recorder and offers detailed harmonic analysis to the 51st order.

Key monitoring capabilities include:

  • Voltage sag and swell detection
  • Precise power outage event logging
  • Flicker monitoring to IEEE 1453
  • High-resolution waveform capture functionality
  • Loose Neutral
  • Waveform Capture
  • Optional GPS timestamping for multi-site event correlation

Specs

Inputs & Channels
AC Voltage Input 0 to 600 V RMS continuous per phase; 5 kV transient measurement
AC Current Input 0 to 5,000 A RMS (CT dependent)
Sample Rate 250 kHz / 4,166 samples per 60 Hz cycle per channel
Voltage Channels 4
Current Channels 4
Measured Quantities (Per Cycle)
RMS Voltage Volts
RMS Current Amps
Real Power Watts
Apparent Power VA
Reactive Power VAR
Phase Angle Degrees
Power Factor Watts/VA
Displacement Power Factor cos(phase angle)
Energy kWh, kVARh, kVAh
Harmonics Voltage and current to the 51st; waveform to 127th; magnitude, phase, THD
Accuracy
Voltage Accuracy ±0.33% of full scale
Current Accuracy ±1.0% of full scale (without probe)
Power Accuracy ±1.0% of full scale (without probe)
Phase Angle ±1.0° (without probe)
Power Factor ±0.02 (without probe)
Communications
Standard Wi-Fi, Bluetooth Low Energy (BLE), USB
Optional LTE Cell Modem, Ethernet
SCADA Protocol Full DNP and MODBUS over Wi-Fi, Cell, or Ethernet
GPS Optional — high-resolution timestamping; SNTP time sync standard
Storage
Onboard Memory 144 MB, Unlimited Cloud Storage
Cloud Storage Unlimited via PQ Canvass
Interval Graph Memory Wrap-around or stop-when-full; user-selectable
Record Settings
Interval Graphs 1 cycle to 4-hour interval, user-selectable; stop-when-full or wrap-around memory modes
Significant Change 1V to 8V in 1V increments
Flicker Settings User-defined, or conforms to IEEE 1453 / IEC 61000-4-15, and IEEE Std. 141
Waveform Capture Voltage and current threshold, periodic capture, waveshape, and event cross-triggers
Relay & Digital I/O
Relay Output Type Dry Contact Form C (1 normally open, 1 normally closed)
Number of Relays 2 independent
Max Switching Voltage 120V
Max Switching Current 4 A
Digital Inputs 2 isolated; 60V min / 120V nominal / 150V max sense voltage
Power Supply
Input Voltage 60–600 VAC, Channel 1 to Common (47–63 Hz)
Power Consumption 5 W max / 15 VA max at 600V
Batteries None — supercapacitors provide 1-minute ride-through for outage notifications
Power Fail Operation 1-minute supercapacitor ride-through for outage notifications
Environmental & Physical
Operating Temperature -20°F to +135°F (-28°C to +57°C)
Humidity ≤85% non-condensing
Shock 60 Hz to 2 kHz, 25G acceleration
Vibration 10–60 Hz, 1.8 mm amplitude
Max Altitude 2.0 km (6,560 ft); derated above 2.0 km
Enclosure Rating NEMA 4X
Dimensions 5.06″ L × 3.00″ W × 1.81″ H
Weight Less than 1 lb
Safety Rating IEC 61010-1, 600V CAT III; UL and CSA listed (C-UL-US, C-ETL-US)
Cell Modem
LTE Carrier activation SIM Card (PMI or customer provided)
External Connection SMA-connected wireless antenna
Networking Public or Private

Software

Expand the Seeker’s Data Analysis Capabilities

PQ Canvass Logo

PQ Canvass

PQ Canvass is the premiere way to view and analyze power quality data.
This cloud-based system is a powerful platform to collect, analyze, and
get alerts from field devices connected through LTE cell, WiFi, or Ethernet.


CLICK HERE TO LEARN MORE ABOUT PQ CANVASS →

Merlin Logo

Merlin™

Merlin™ is PQ Canvass’ AI-assisted power quality analysis tool.
Merlin analyzes PQ recordings, automatically identifies issues,
applies standards-based checks, and surfaces clear results in minutes.


CLICK HERE TO LEARN MORE ABOUT MERLIN →

Merlin

Have a PQ Question? Ask Merlin™ — Free

Send it to askmerlin@powermonitors.com or text (540) 383-3144

White Papers

Drawings

Downloads

Seeker Spec Sheet Seeker Manual

Seeker Spec Sheet (Z-Card)

Videos

FAQ

Does the Seeker support SCADA integration?

Yes. It provides full DNP and MODBUS protocol support over Wi-Fi, cellular, or Ethernet, making it easy to integrate with existing SCADA systems.

Does the Seeker store data on the device, or only in the cloud?

Both. The Seeker keeps 144 MB of onboard memory for local event recording and streams continuously to PMI’s PQ Canvass for unlimited cloud storage.

What communication options are available?

Wi-Fi, Bluetooth Low Energy (BLE), and USB come standard. LTE cellular and Ethernet are available as options.

What voltage and current ranges does the Seeker measure?

0–600 V RMS continuous per phase (with 5 kV transient measurement) and 0–5,000 A RMS depending on the CT used, across four voltage and four current channels.

How accurate is the Seeker?

Voltage accuracy is ±0.33% of full scale. Current, power, and phase measurements are accurate to ±1.0% of full scale (without probe).

Does the Seeker need an external power supply?

No. The Seeker is line-powered, drawing power directly from the monitored line, so installation is as simple as connecting voltage leads and current transformers.

Does the Seeker include relay outputs or digital inputs?

Optional dual Form C relay outputs (2 independent relays) and 2 isolated digital inputs are available for controlling external equipment or monitoring field devices.

What happens to the Seeker during a power outage?

The Seeker has no batteries – onboard supercapacitors provide about one minute of ride-through power, which is enough to capture and report the outage event before it loses power.

Where can the Seeker be installed?

It’s rated NEMA 4X for outdoor use, including pole-mount deployment with the polemount option. It measures 5.06″ x 3.00″ x 1.81″ and weighs less than 1 lb.

Have a power quality question about your Seeker data?

Ask Merlin™, PMI’s free AI-assisted power quality assistant — email askmerlin@powermonitors.com or text (540) 383-3144. Merlin™ is part of PQ Canvass; you can learn more on the Merlin™ product page.

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