1986 Sangamo 277v, 4 wire Demand meter w/sealing ring & lead/copper seal | eBay
Emon Corp 208100MI 4-Wire Demand Meter - IMS Supply
Ampere Demand Meter
Utilities Consumer Advocate: Reading Your Power Demand Meter
E-Mon 100 Ampere 277/480V 3-Phase KWH/Demand Meter (E20-480100-JKIT) at Main Electric Supply
Landis+Gyr ZMG310(E550) Direct Connected Demand Meter (120A version) - Mobi Power (Pty) Ltd
Old fashioned style maximum demand meter | We sell electrici… | Flickr
Lot - Lot of 2 electric meters including GE G-9 SN:6034748 model W1 AC 120 volts Recording Demand meter, round paper chart. GE GS-12 SN:6031000 model W AC 120 volts Recording Demand
Understanding Electric Demand | Danville Utilities