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Depth readings from 2.0 to 130ft (40meters) in 1/10th precision,ottom contour and Water Temperature indicator 100-level sensitivity setting and multi levels depth range

Depth readings from 2.0 to 240ft (40meters) in 1/10th precision,ottom contour and Water Temperature indicator， 100-level sensitivity setting and multi levels depth range

Depth readings from 2.0 to 1000ft (300meters) in 1/10th precision, Bottom contour and Water Temperature indicator, 100-level sensitivity setting and multi levels depth range