Model F-238 reaches a depth of 150 m and has the transmitter technology called Single Beam. Model 242 reaches a depth of 160 m and has the transmitter technology Dual Beam / Dual Cone.

A sturdy digital fish finder with a 4,3'' LCD screen (10,9 cm diagonal). Resolution 240 x 128 pixel with 4 levels of grey, fish-ID with individual depth information, water temperature display, waterproof, display of the ground, single beam, maximum depth: 150 m, frequency: 200 kHz, 12 V operating voltage.