A. 50w turbine generator power provided by MWD and electricity resistivity;
B. Battery saving and environmental protection;
C. Applicable for deep well and extra deep well;
D. High temperature resistance of 175℃ and high pressure resistance of 150 Mpa;
E. Available for connection to near bit instrument;
F. Specification of 4.75”and 6.75”;
G. Displacement: 12～55 L/s (6”~17”borehole).