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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryElectrical IndustryMarthalenMüller-Elektronik AG
Müller-Elektronik AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Müller-Elektronik AG is the development, manufacture and marketing of gas warning systems, gas detection systems and water quality measuring devices. The company offers a wide range of products and solutions for various industries and applications, including the detection of flammable, toxic and asphyxiant gases as well as the monitoring of water quality parameters such as chlorine, pH value and temperature.

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Products & services

Industry:Electrical Industry
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4.0/5

Müller-Elektronik AG

Gas warning systems
Gas warning systems for flammable, toxic and oxygen-displacing gases; consisting of a gas control unit, sensors, warning signals and interfaces to ventilation, valves and building technology.
Gas sensors
Gas sensors for flammable, toxic and oxygen-displacing gases as well as temperature and humidity; including ME 1250, ATEX sensors, measuring methods and accessories for installation and communication.
Gas control units
Gas control units for processing sensor signals, alarm triggering and controlling ventilation, valves, switching signals and other automatic actions.
Signal devices
Signal devices for optical and acoustic alarm signalling, including illuminated signs, beacons, sirens and bus expanders for gas warning systems.
Portable gas measurement devices
Portable gas measurement devices for mobile gas detection and personnel safety; including Crowcon Clip, Gasman, T4 and Gas-Pro as well as service.
Service and maintenance for gas warning systems
Service, maintenance and end-of-life monitoring for gas warning systems; testing and calibration, replacement of measuring cells and 24-hour on-call duty.
Water quality measurement and control
Measurement, control and evaluation technology for water quality in public pools and industry; for chlorine, pH, redox, ozone, bromine and temperature.
Water control units
Water control units for signal processing in swimming pools, water treatment, wastewater and drinking water systems.
Water sensors
Water sensors for chlorine, pH/redox and temperature for monitoring and controlling water quality.
AquaSens flow fitting
AquaSens flow fitting for water quality measurement and installation of measuring probes.
Consulting and project design
Technical consulting, project design and proposal preparation for gas warning systems and water quality systems, by telephone, electronically, on site or at the project location.
Trust & reputation

ranQ Trust Score of Müller-Elektronik AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Müller-Elektronik AG scores 56.8 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.73.124%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.35.310%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.35.08%
Müller-Elektronik AG scores 85.5 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.55.07%
Müller-Elektronik AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).85.022%
Müller-Elektronik AG scores 28.6 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Müller-Elektronik AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 3 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

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Location

Alti Ruedelfingerstrass 11
8460 Marthalen
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.928.139
Founded
1979 · 47 years
Last commercial register change
September 10, 2021
Employees
1 to 10
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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