Load Tester Units are used as an Electrical load on kWh power meters. When testing at the switchboard to ensure the correct operation and functionality of the meters. All our Load Tester Units offer CAT IV Safety rating for the User. All Units also come complete with storage bag and accessories. EFO also supplies a full range of metering test equipment and PPE. Furthermore we select with best quality and value products. Consequently Saving you time on confusing options.