uxcell 45-65Hz Frequency AC 380V Analog Panel Meter 1.5 Accuracy Class Tester Country of Manufacture: CHINA; Material: Plastic; Net Weight: 125g Package Content: 1 x Frequency Panel Meter; Brand: Assisi; Model: SQ72 Main Color: Black, White,Blue; Accuracy Class: +/-1.5 Voltage: AC 380V; Frequency: 45-65Hz Total Size: 72 x 72 x 58mm/2.8" x 2.8" x 2.3"(L*W*H); Screw Dia: 5mm/0.2", 2mm/ 0.08"