Features 1、The pointer is driven by moving‑magnet principle, ensures good durability and vibration resistance. 2、IP67 waterproof and dust‑proof grade, full adapted to the harsh environment. 3、Adopt curved glass, with anti‑fogging function, making it clearer to read data. 4、9-32V ultra‑wide working voltage design, making it safer and more dependable to use. 5、The stepper motor is suitable for all stepping gauges and has the advantages of low power consumption, long life and high accuracy. Specifications: Condition: 100% Brand New Item Type: Ampere Meter Material: Stainless Steel + Nickel-plated Plastic Connectioning: Red-Battery(+9-32VDC), Blue-Battery(-) Black-Signal Orange-Backlight(+9-32VDC) Indicating Range: +/-50A Protection Class: IP67,can work underwater 1m position Operation Mode: LCD display, stepper motor Package List 1 x Ampere Meter 1 x Current Sensor 1 x Connect Cable