Elster Group is a world leader in meters. The company makes gas, electricity, and water meters mainly for utilities. Products include manual-read and smart meters equipped with software and network communications technology used to monitor and measure consumption and energy efficiency. The group has operations in North and South America, Europe, and Asia. Elster Group also sells heating equipment to furnace and boiler makers. In late 2015, Elster Group was acquired by industrial conglomerate Honeywell International for $5.1 billion.