... ,3A...20A. For 10A-10KA,use external current transformer...... Square Type Moving Coil AC Ammeter wtih ... 240°1. Model: 240°SF-96-3, SF-72-3.For high frequency or linear full ... 3. Specification: 0.5A, 1A, 1.5A, 3A, 5A, 7.5A, 10A, 15A, 20A.For 10A-10KA,Use external current transformer, which secondary current ... use, dust proof. Under the same secondary current, scale-change can be conducted without loss of ...