Brandwave

Klein Tools vs Testo:Which is more popular?

In September 2026, Klein Tools had more branded searches than Testo among clamp meter brands worldwide. Klein Tools had about 165,000 branded searches, while Testo had 135,000. Klein Tools made up 14.5% of all clamp meter brand searches we track, and Testo accounted for 11.9%. When we asked ChatGPT and Google AI Overviews about clamp meter brands, Klein Tools appeared in four of the five answers and Testo in none.

Among clamp meter brands worldwide in September 2026

Who do people search for more?

Klein Tools, about 22% more searches than Testo

Klein Tools 165K searchesTesto 135K searches

Who does AI mention more?

Klein Tools, mentioned in 4 of 5 answers, Testo in 0

Klein Tools in 4 of 5Testo in 0 of 5

Who does AI recommend more?

Klein Tools, the only one of the two named

Klein Tools first in 4Testo never named

Follow Klein Tools vs Testo and get free monthly updates on what changed

By continuing you'll get index updates and occasional product news from Brandwave. Unsubscribe any time. Privacy

Track your brand against a rival →

Top clamp meter brands in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Klein Tools was mentioned in four out of five: in all three ChatGPT answers and in one 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.

  1. Fluke1st
  2. Klein Tools2nd
  3. Hioki3rd
  4. Amprobe4th
  5. UNI-T5th
  6. Testo–
  7. FLIR–
  8. Extech–

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

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in the United States on October 20, 2026.

Is Klein Tools or Testo more popular in search?

This chart shows how often people search Google for Klein Tools 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.

Klein Tools and Testo among clamp meter brands worldwide, by month

Share of searches by month for Klein Tools, Testo. The figures are in the table below the chart.

View monthly share of searches table
MonthUNI-TKlein ToolsTestoFlukeFLIRHiokiExtechAmprobe
Oct 202555.5%13.6%13.6%7.5%6.1%2.5%0.82%0.44%
Nov 202555.5%13.6%13.6%7.5%6.1%2.5%0.82%0.44%
Dec 202558.9%14.4%11.8%6.5%5.3%2.1%0.71%0.31%
Jan 202655.5%13.6%13.6%7.5%6.1%2.4%0.82%0.44%
Feb 202655.5%13.6%13.6%7.5%6.1%2.4%0.82%0.36%
Mar 202660.5%12.1%12.1%6.6%5.4%2.2%0.73%0.32%
Apr 202665.7%10.8%10.8%5.9%4%2%0.65%0.29%
May 202665.8%10.8%10.8%5.9%4%2%0.53%0.29%
Jun 202661.1%12.3%12.3%6.7%4.5%2.2%0.6%0.26%
Jul 202656.2%13.8%13.8%7.6%5.1%2.6%0.67%0.3%
Aug 202658.7%14.4%11.8%7.9%4.3%2.1%0.58%0.25%
Sep 202659.1%14.5%11.9%8%3.6%2.2%0.58%0.25%

How has the Klein Tools and Testo comparison changed over the last 12 months?

3 findings
  • Klein Tools was ahead of Testo in every measured month of the 12 months ending September 2026.
  • Across the 12 months ending September 2026, Klein Tools’ share of searches among clamp meter brands worldwide moved from 13.6% to 14.5%, and its estimated monthly branded searches moved from 135K to 165K.
  • 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?

1 change

  1. Klein Tools’ share of searches among clamp meter brands worldwide has gained ground for 3 months in a row, from 12.3% to 14.5% in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Klein Tools’ 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.

Klein Tools

1 branded search term

  • klein tools

Testo

1 branded search term

  • testo

How the Brand Demand Index is measured

Other head-to-heads among clamp meter brands

Creator with pink hair and a pink jacket

Put your own brand in this comparison

Brandwave tracks your branded demand next to the rival you actually watch, with your campaigns, spend and outcomes on the same timeline.

Start free