Underground Magnetics Echo 70 transmitter
The Echo 70 is an extended range transmitter that offers up to ten frequencies as well as two power modes. Switch not only frequency but also power mode down hole. With a depth range of up to 230 feet in High Power Mode, the Echo 70 offers exceptional versatility in all drilling environments. No job is too big nor is any interference too loud for the Echo 70.
Dimensions : 1.42″ × 15.94″ (3.6 cm x 40.5 cm)
Frequency : 10 Frequencies 4kHz-31kHz
Battery Type : 18650 x 3 Rechargeable Lithium
Battery Life : 60 hrs – Normal Mode 15 hrs – High Power Mode
Depth Range : 164 Feet (50 meters) – Normal Mode 230 Feet (70 meters) – High Power Mode