Metering Metering Products Factories Represented in the Metering Market: The Durham Company Meter Sockets and Enclosures Electromark Signs, Tags, Labels, Marking Systems GEC Durham Industries (Astra) 600 Volt Instrument Transformers Inner-Tite Meter Seals, Locking & Security Devices M2M Engineering Communication Devices Meter-Treater, Inc Whole House Surge Protection Schneider Electric/Square D Electronic Metering Equipment Southern Forms, Incorporated Meter Pedestals and Fabrications Select another market The Durham Company Meter Socket (above) Meter Socket with Test Switch (below)