Overall dimension: 45mmX45mm Package: 1pc Model: 91C4-MA Measuring range: 1000A (A) Accuracy; Grade 2.5 Measuring range of ammeter AC ammeter: 0.5-30A can be directly connected 10/5A-800/5A secondary current through current transformer AC voltmeter: 1KA-10KA secondary current through current transformer 10V-600V can be directly connected 1KV-35KV secondary current through current transformer DC ammeter: fifty - five hundred 1mA-500mA can be directly connected 1A-15A can be directly connected 15A-750A with external shunt 75mV 1K - With external shunt 75mV DC voltmeter: 3V-600V can be directly connected 1KV-3KV external fixed resistance Please note that: 1: When receiving goods, customers should open the packaging and carefully inspect it. If there is any damage to the item, please reject it and contact us as soon as possible. We will negotiate and handle it together 2: Due to shooting, lighting, display brightness, and other reasons, there is a color difference problem in the product image. Therefore, those who are allergic to product color should consider carefully before purchasing. Thank you! _x000D_