Hioki vs Testo:Which is more popular?
In September 2026, Testo had more branded searches than Hioki among clamp meter brands worldwide. Testo had about 135,000 branded searches, while Hioki had 24,600. Testo made up 11.9% of all clamp meter brand searches we track, and Hioki accounted for 2.2%. When we asked ChatGPT and Google AI Overviews about clamp meter brands, Hioki appeared in three of the five answers and Testo in none.
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Top clamp meter brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Hioki was mentioned in three out of five: in all three ChatGPT answers, but not in either of the two Google AI Overviews. Testo did not appear in any of the five answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
Fluke5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Klein Tools4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Hioki3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Amprobe3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
UNI-T1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Testo0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
FLIR0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Extech0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about clamp meter brands
5 answers
Asked ChatGPT
“Which clamp meter brand should I buy?”
Asked ChatGPT
“What are the best clamp meter brands?”
Asked ChatGPT
“What's the best clamp meter brand for electrical testing?”
Searched Google, AI Overview
“digital clamp meter”
Searched Google, AI Overview
“current clamp meter”
Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.
Is Hioki or Testo more popular in search?
This chart shows how often people search Google for Hioki and Testo by name. Each line represents a brand's share of searches for all eight clamp meter brands we track, month by month, from English-language searches worldwide.
Share of searches by month for Testo, Hioki. The figures are in the table below the chart.
View monthly share of searches table
| Month | UNI-T | Klein Tools | Testo | Fluke | FLIR | Hioki | Extech | Amprobe |
|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 55.5% | 13.6% | 13.6% | 7.5% | 6.1% | 2.5% | 0.82% | 0.44% |
| Nov 2025 | 55.5% | 13.6% | 13.6% | 7.5% | 6.1% | 2.5% | 0.82% | 0.44% |
| Dec 2025 | 58.9% | 14.4% | 11.8% | 6.5% | 5.3% | 2.1% | 0.71% | 0.31% |
| Jan 2026 | 55.5% | 13.6% | 13.6% | 7.5% | 6.1% | 2.4% | 0.82% | 0.44% |
| Feb 2026 | 55.5% | 13.6% | 13.6% | 7.5% | 6.1% | 2.4% | 0.82% | 0.36% |
| Mar 2026 | 60.5% | 12.1% | 12.1% | 6.6% | 5.4% | 2.2% | 0.73% | 0.32% |
| Apr 2026 | 65.7% | 10.8% | 10.8% | 5.9% | 4% | 2% | 0.65% | 0.29% |
| May 2026 | 65.8% | 10.8% | 10.8% | 5.9% | 4% | 2% | 0.53% | 0.29% |
| Jun 2026 | 61.1% | 12.3% | 12.3% | 6.7% | 4.5% | 2.2% | 0.6% | 0.26% |
| Jul 2026 | 56.2% | 13.8% | 13.8% | 7.6% | 5.1% | 2.6% | 0.67% | 0.3% |
| Aug 2026 | 58.7% | 14.4% | 11.8% | 7.9% | 4.3% | 2.1% | 0.58% | 0.25% |
| Sep 2026 | 59.1% | 14.5% | 11.9% | 8% | 3.6% | 2.2% | 0.58% | 0.25% |
How has the Hioki and Testo comparison changed over the last 12 months?
3 findings
- Testo was ahead of Hioki in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Hioki’s share of searches among clamp meter brands worldwide moved from 2.5% to 2.2%, and its estimated monthly branded searches held steady at 24.6K.
- Across the 12 months ending September 2026, Testo’s share of searches among clamp meter brands worldwide moved from 13.6% to 11.9%, and its estimated monthly branded searches held steady at 135K.
How did search popularity change for clamp meter brands worldwide in September 2026?
0 changes
Neither Hioki nor Testo moved beyond provider rounding among clamp meter brands in September 2026.
How are branded searches counted?
3 search terms
Brandwave collects information about searches that people make online using Hioki’s and Testo’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Other head-to-heads among clamp meter brands
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