Elster First to Win European Approval for New H5000 Woltmann Turbine Water Meter with Measuring Range of 1600:1

New H5000 features widest measuring range of any metering technology with a single measuring element

LUTON, England, March 31, 2011 - Elster (NYSE: ELT) announced today that the Slovak Institute of Metrology
has approved Elster's next generation H5000 Woltmann turbine bulk water meter
in accordance with European Measuring Instruments Directive 2004/22/EC.

(Logo: https://photos.prnewswire.com/prnh/20110126/SF35872LOGO-a)

The approved measuring range of 1600:1 marks the first time this
exceptional level of performance has been achieved from a Woltmann type water
meter.

With a range of important features and its innovative measuring
technology, the H5000 is ideally suited for billing or water distribution
applications. A new rotor design combined with proven sensor technology
maximizes its measuring range.

A single measuring element improves sensitivity, durability and maintains
its useful life even at the highest flow rates. With low-flow capabilities
similar to combination meters, the H5000 provides a metrological performance
that ensures accurate measurement of minimum night flows.

The H5000 meter has an advanced electronic register which includes
integrated communications covering a range of industry standard outputs
compatible with common AMR/AMI systems and data-logging equipment.

"The approval of a range of H5000 meter sizes under European Directive
2004/22/EC recognizes the substantial investment and expertise of Elster's
development team and is the latest example of the innovation our customers
expect from Elster," commented Tim Gabriel, senior vice president of
operations for Elster's global water business.

"With a measuring range of 1600:1, the H5000 offers customers a solution
that provides accurate water measurement in support of both commercial
billing and network applications. It also simplifies meter selection and
helps to provide reliable connectivity for Smart Metering and other telemetry
devices," Gabriel added.

About Elster

Elster (NYSE: ELT) is one of the world's largest electricity, gas and
water measurement and control providers. Its offerings include distribution
monitoring and control, advanced smart metering, demand response, networking
and software solutions, and numerous related communications and services -
key components for enabling consumer choice, operational efficiency and
conservation. Its products and solutions are widely used by utilities in the
traditional and emerging Smart Grid markets.

Elster has one of the most extensive installed revenue measurement bases
in the world, with more than 200 million metering devices deployed over the
course of the last 10 years. It sells its products and services in more than
130 countries across electricity, gas, water and multi-utility applications
for residential, commercial and industrial, and transmission and distribution
applications.

For more information about Elster, please visit www.elster.com.

John Bluth, Elster Investor Relations and Corporate Communications, +1-919-250-5425, john.bluth at elster.com, Ronald Botoff, Elster Investor Relations, +1-919-212-4857, ron.botoff at elster.com, Rainer Mueller-Mueffelmann, Corporate Communications International, Elster, +49-6134-605 213, rainer.mueller-mueffelmann at elster.com, Perry Shead, Marketing Communications, Elster, +44-1582-846400, perry.shead at gb.elster.com