Applied toremote and shouting distancephase detecting, phase testing, phase sequence judgement and electrictity testing of the high voltage line,metalclad withdraw switchgear and ring main unit and others occasion. 1. Model : ETCR1560A 2. Phase Qualitative: Same phase:－20°～20°；Out of phase: 100°～140° and 220°～260° 3. Phase Range & Accuracy : 0°～360°；Accuracy：≤±8 ° 4. Frequency Range & Accuracy: 45.0Hz～65.0Hz；Accuracy：≤±2Hz 5. Transmitting Frequency : 433MHz, 315MHz 6. Host Power Supply : 3.7V, 2600mAh Rechargeable lithium battery
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