Metalclad Withdraw Switchgear Wireless Phase Detector applied to phase judgment and phase sequence testing of handcart type metalclad withdraw switchgear in 10KV-35KV power distribution system. 1. Model No.: ETCR1540 2. Phase Detecting Voltage: 10KV~35KV 3. Phase Detecting Distance: 20m 4. Phase Range: 0°~360° 5. Transmitting Frequency: 433MHz, 315MHz 6. Power Supply: Host: 3.7V, 2600mAh Rechargeable lithium battery; Detector: 3.7V, 600mAh Rechargeable lithium battery