380v ~ 220kV high voltage line electricity test, high voltage line voltage to ground test, induction voltage test, high voltage line current test. 1. Model : ETCR1800B 2. Electricity Test Level: 380V、6.6kV、10kV、35kV、66kV、110kV 3. Voltage to Earth Display Range : 0.1kV~69kV(Voltage to earth) 4. Electricity TestVoltageRange : 380V~110KV 5. Wireless Frequency : 433Hz 6. Power Supply: Receiver: DC6V, alkaline battery LR03X 4PCS; Detector: zinc-manganese dry battery 6F22, 9V