# Elster

> Elster makes utility metering and gas measurement and control equipment. Its heritage spans gas, electricity and water meters, communications networks and meter-data software; Honeywell acquired the business in December 2015. The Elster name continues within Honeywell, including Elster-Instromet gas technologies.

- **Founded:** 1848
- **Headquarters:** Wiesbaden (Mainz-Kastel), Germany
- **Founders:** Johannes Siegmar Elster (Founder of the 1848 predecessor), Emil Haas (Co-founder of Gasmesserfabrik Elster & Cie; gas-meter inventor)
- **Products:** EnergyAxis, REX and ALPHA electricity meters, Q.Sonic-plus, Q.Sonic-max6, Route Manager
- **Notable:** Developed a metering lineage dating to 1848., Emil Haas received a gas-meter principle patent in 1878., EnergyAxis participated in large utility modernization programs, including Salt River Project.

## Products & services

- **EnergyAxis** — Advanced metering infrastructure combining meters, communications and utility data systems.
- **REX and ALPHA electricity meters** — Residential and commercial/industrial electricity metering families used in EnergyAxis deployments.
- **Q.Sonic-plus** — Six-path ultrasonic gas meter for custody-transfer and transmission applications.
- **Q.Sonic-max6** — Ultrasonic gas meter presented in a November 2025 Honeywell webinar, extending applications from transmission to distribution.
- **Route Manager** — Mobile data collection using the radio communications also used by EnergyAxis fixed networks.
- **Gas regulation, electronics and stations** — Gas pressure regulation, volume conversion, analysis and integrated metering equipment.
- **Water meters** — Heritage portfolio of mechanical, electronic and smart water metering products.
- **Gas measurement training** — Courses cover commissioning, diagnostics, maintenance and software for metering equipment.

## Achievements

- Developed a metering lineage dating to 1848.
- Emil Haas received a gas-meter principle patent in 1878.
- EnergyAxis participated in large utility modernization programs, including Salt River Project.
- Honeywell completed the approximately US$5.1 billion acquisition in December 2015.

## Latest updates

- **2025-11** — Honeywell’s November 11 webinar introduced Q.Sonic-max6 and its transmission-to-distribution applications.
- **—** — Honeywell published a 2026 gas-measurement training calendar covering Mainz-Kastel and Dortmund; publication month is not established.

## Links

- Website: https://elster.com
- LinkedIn: https://www.linkedin.com/company/elster/
- Twitter/X: https://twitter.com/Elster_Global
- Facebook: https://www.facebook.com/ElsterGlobal/

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Profile page: https://yespress.io/elster
Published by YesPress — https://yespress.io
Last updated: 2026-10-22