Simpson’s Tru-Vue family of analog panel meters offers a modern, clear acrylic front lens, and a clean, open scale to update your panel design. Tru-Vue panel meters provide reliable measurement of DC current up through 500 amps and are available in five popular sizes including: 1-1/1”, 2-1/2”, 3-1/2”, 4-1/2”, and 4x6” sizes. High range inputs require external current shunts (see Accessory Section). All meters are guaranteed to ±2% full scale (F.S.) accuracy and meet American National Standards Institute specification ANSI C39.1. Attractive black satin, die cast bezels are available in 3-1/2 and 4-1/2 inch sizes for behind panel mounting. The annular movement with rugged spring-backed pivot and jewel or taut band suspensions is self-shielded from stray magnetic fields. This style meter is ideal for many other electrical functions.