Model S40A ( 3* 40A, 3* 150V) has large LCD display and panel control facilities. No external PC is required. It can easily test many types of relays, including distance relay, df....
Model T200A ( 250Aac, 500Vac, AC/ DC current) can be used to test many types of relays, including high burden relay and CT. Operation is easy, no much training is required. ( ....