Underground Magnetics Echo 90 transmitter
The Echo 90 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 295 feet in High Power Mode, the Echo 90 offers exceptional versatility in all drilling environments. No job is too big nor is any interference too loud for the Echo 90.
Dimensions : 1.42″ × 18″ (3.6 cm x 45.7 cm)
Frequency : 10 Frequencies 4kHz-31kHz
Battery Type : 18650 B2 x 2 Rechargable Lithium
Battery Life : 80 hrs – Normal Mode 20 hrs – High Power Mode
Depth Range : 230 Feet – Normal Mode 295 Feet – High Power Mode