Electrocorder AL-2VA Energy Logger for Domestic and Light Commercial AppliancesOverview The Electrocorder AL 2VA is a plug in appliance power and energy logger for measuring voltage, current and energy consumption on domestic, office and light commercial equipment. Use it when the load can be plugged into a standard socket and you want to understand how much energy it uses over time. The AL 2VA sits between the wall socket and the appliance, making it useful for appliance checks, office energy audits and spot checks without