A three-phase power quality analyzer from a major brand typically sells for about US$8,000 to US$16,000 through US resellers, and flagship recorders go above US$20,000. That price is only the start. Probes, software, calibration and the engineering time to run each campaign often decide whether the instrument pays for itself.
This guide shows what the market charges, what is inside the price, and how to compare a portable analyzer with a permanent monitoring system on cost per month of evidence.
What analyzers cost today
Reseller prices for well-known three-phase instruments, checked in October 2026. They vary by bundle (probes, cases, support plans), country and date, so treat them as a range, not a quote.
| Instrument | Type | Typical US reseller price | Source |
|---|---|---|---|
| Fluke 435-II | Handheld analyzer | about $8,300–$12,300 new | Aztek listing |
| Hioki PQ3198 | Portable analyzer | about $8,100 body only; $9,600–$12,000 as a kit | TEquipment |
| Fluke 1738 | Power and energy logger | about $8,100–$10,000 | Fluke store |
| Fluke 1777 | Power quality analyzer | about $12,000–$16,000 | Instrumart |
| Dranetz HDPQ Visa Plus / Guide Plus | Portable analyzer | about $8,600–$12,500 with 500 A clamps | Transcat |
Used units and rentals exist for most of these. A used Fluke 435-II was listed at about $7,000 with a calibration certificate (Transcat), which tells you how much of the value the market puts on the instrument alone.
What is actually inside the price
When two quotes differ by thousands of dollars, the difference is usually in one of these lines:
- Current probes. A body-only price often excludes them. Flexible Rogowski coils for large conductors and clamps for small ones are separate items, and you need one per phase plus neutral.
- Measurement class. Instruments that are certified as IEC 61000-4-30 Class A cost more, because the certification fixes how every parameter is measured and aggregated. Ask for the certificate and the edition of the standard it refers to; our guide to choosing an analyzer explains when Class A matters and when it does not.
- Software and reporting. Some vendors include analysis software; some sell it, or the EN 50160 and IEEE 519 report modules, separately.
- Support and calibration. Annual calibration and extended support plans can add a meaningful percentage per year.
- Connectivity. Remote access, cloud storage and alarms are standard on permanent systems and optional or absent on many portable ones.
The cost nobody puts on the quote: engineering time
A portable analyzer only measures while someone has installed it. Every campaign needs:
- a visit to connect it safely (often with a permit and an isolation procedure);
- the campaign itself, typically one to several weeks;
- a second visit to remove it;
- the time to download, analyse and write the report.
For a single survey, that is reasonable. For a recurring problem on several sites, the engineer’s time quickly costs more than the instrument. It also creates a gap: the event that happens after the analyzer leaves is never recorded.
Portable vs permanent: compare cost per month of evidence
The useful comparison is not instrument price against instrument price, but what each month of reliable data costs on the assets that matter.
| Cost line | Portable analyzer | Permanent monitor |
|---|---|---|
| Hardware | One instrument shared across sites | One unit per monitored point |
| Engineering visits | Two per campaign, per site | One, at installation |
| Coverage | Only during campaigns | Every hour of every month |
| Rare events | Often missed | Recorded with the waveform before and after |
| Data access | After download | Live, with alerts |
As a rule of thumb: if a single unexplained stop of the asset costs more than the monitor, the monitor is the cheaper option, because it is the only one guaranteed to have the evidence. Our portable vs permanent guide walks through that decision in detail.
Questions to ask every supplier
- Is the price for the body only, or with probes for all phases and neutral?
- Which measurement standard and class is certified, and can I see the certificate?
- Is the analysis and reporting software included, and is it licensed per user or per device?
- What does annual calibration cost, and where is it done?
- How is data retrieved: download, network, or cloud? What does remote access cost per year?
- How long are events stored, and are waveforms kept before and after each event?
What Inspector costs
Inspector is priced per project, because the right answer depends on the number of measuring points, the sensors you add and whether you start with a portable survey or a permanent installation. What is included in every unit of the family:
- the same measurement core in the permanent Inspector V4 and the Portable V4 (24-bit, 32 kSPS per input, 5 cycles stored before and after each event);
- cloud access with SMS, e-mail and app alerts on permanent installations;
- inputs for environmental, vibration and motor-current sensors, so one device covers power quality and predictive maintenance.
Ask for a quote with your site and the problem you are trying to solve, or download the product datasheets first.
