Detailed Product Description Wide-angle marine meters (96 x 96 and 72 x 72mm) Meter mechanism using magnetic structure of the tensile spring wire support, rotating friction-free, operation reliable Anti-high mechanical impact, operating good under the condition of vibration in the acceleration ≤0.7g Instrument accuracy: frequency meter is 0.5, power factor meter is 3.0, others is 1.5 Pointer ...