About WEHRLE
As a family business with tradition, we combine the courage to drive progress with sustainability and reliability. Innovation and durability are not just characteristics of our products, they also reflect how we work at WEHRLE. The way we work and the know-how in the treatment of special waste and complex wastewater makes us the driver of the green transformation. With our product world, we offer companies 360⁰ support in reducing their water footprint, resource recovery, resource conservation and sustainable energy production.

Heat meters and heat cost allocators
Sontex heat meters and heat cost allocators can be adapted very flexibly to your needs and integrated in a home automation or billing system. According to application, our clients choose bidirectional radio or open OMS standard for reliable and safe connection to readout systems. Our developers support you if you have questions about new trends, e.g. the LoRa pilot project or smart grid networks.

Swiss Made
«Swiss Made» is both a motivation and an obligation for us. A high degree of automation and demanding quality standards allow us to guarantee the constant high quality and precision of our systems. By combining development, production and final inspection under one roof, we remain flexible in implementing clients’ wishes.

Our partners
Sontex’ global network of partners in over 30 countries ensures short delivery times and professional on-site support. Flexibility and reliability are our bywords.
Vision
You benefit from our secure connectivity technologies. We are your reference in the field of communications. Together, we guarantee the link between users and economic operators.
You are current and future partner. We have an open ear and are close to you. Together, we are developing your tomorrow’s products.
You benefit from cutting-edge solutions. We are pioneers in our field. Together, we are building the future.
You are looking for complete data management. We offer highly effective metering and detection systems. Together we achieve lasting solutions.

Values
Creativity
- We are open-minded
- We improve every day
- We live by and for change
Responsibility
- We are a reliable interdisciplinary team
- Everyone shoulders his responsibilities in his field
Commitment
- We go the extra mile
- We are determined
- We keep our promises
- We can be counted on
Respect
- We respect our counterpart
- We respect current legislation
- We take other’s proposals seriously
History
Sontex is the result of a management buy-out in 1989 of the “heat meters” division of Sonceboz S.A.
Two expansions phases have allowed to modernised the infrastructure to a high degree and extending our floor space to 4,000 m2. Practically unchanged since the company’s formation, its ownership structure guarantees high stability and willingness to invest in the future.


Accreditations
Accreditation as calibration laboratory for quantities of water
The Sontex calibration laboratory SCS 0071 has been accredited since 1996 by the Swiss Accreditation Service SAS to ISO/IEC standard 17025, with periodic monitoring (see accreditation certificate and SCS directory). The lab is equipped with several water testing stations from 15°C to 85°C for flows of 5 litres/hour to 200 cubic meters/hour with ANSI threaded connections from ¾” to 2” and DIN flange joints from DN 15 to 150, as well as temperature baths for temperature difference measurement between 5°C and 150°C with a temperature difference of at least 1 K T. The publication of trilingual measurement certificates is an important part of what is offered.