Đồng hồ đo điện trở đất Kyoritsu 4102A Measurement Ranges Earth Resistance: 0~12 Ω/0~120 Ω/0~1200 Ω Earth Voltage [50,60Hz]: 0~30V AC Accuracy Earth Resistance: ±3% of full scale Earth Voltage: ±3% of full scale Overload Protection Earth Resistance: 276V AC for 10 seconds across 2 of the 3 terminals Earth Voltage: 276V AC for 1 minute Safety Standard IEC 61010-1 CAT.III 300V Pollution Degree 2, IEC 61557 Applicable Standards IEC 60529 IP54 Withstand Voltage 3700V AC for 1 minute Power Source R6P (AA) (1.5V) × 6 Dimensions 105(L) × 158(W) × 70(D)mm Weight 600g approx. Accessories 7095A (Earth resistance test leads) × 1set (red-20m, yellow-10m, green-5m) 8032 (Auxiliary earth spikes) × 1set 7127A (Simplified measurement probe) × 1set R6P (AA) × 6 Neck strap Instruction Manual Carrying Case : 4102A (Soft case) : 4102A-H (Hard case) Optional 7100 (Precision measurement cord set)