User Manual

5.2 Specifications
Echo-70
：
Freque ncy: 19 kHz-31 kHz Depth Range :
60 m/190 ft@regular power
70 m/230 ft@high power
Power: 3 18650 rechargeable lithium batteries
18650(3.7v)*3 battery life: 60h@regular power
15h@high power
Dimensions：
φ 3.6*39.3(cm)/ φ 1.4*15.5(in)
Temperature：Under 85℃(185℉)
Water proof：IP67
V.BAT: 8.4v~12.6v
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