... probe tube; they have the functions of automatic/manual, constant speed control, fixed points/continuous measurement, automatic depth modification, and alarm ... Measurement Winch and Controller”. They are suitable for borehole measurement in geology, metallurgy, coal mining field, oil field, and ... ;(5) Power supply: AC 220V±10%, 50 Hz;(6) Motor power: 1100 W;(7) Net weight: 110 kg (without cable ...