http://www.marinall.gr/index.aspx?categoryID=231&subCategoryID=981&productID=9409&productIndex=5 The Fishfinder 160C is a rugged, affordable color sounder for recreational anglers who fish primarily in freshwater lakes. Fish returns and bottom information are clearly shown on the unit's bright, sunlight-readable color display, making it easier for you to scope out your fishing grounds. Specs • Unit dimensions, WxHxD (mm): 155x124x74 • Display size, WxH (mm): 80x80 mm (4,5") • Display resolution (pixels): 128x240 • Display type: 16-color, CSTN • Weight: 499 gr • Waterproof: IPX7 • Frequency: 200 kHz • Transmit power: 150 W (RMS) • Voltage range: 10 - 18 V • Maximun depth: 274,5 m (900 ft) • Cone angle (degrees): 14 or 45 (dual beam) • 2x and 4x automatic and manual zoom Features • NMEA output • Alarms for fish size, shallow water, deep water, low battery • Dual beam sonar capable • Ultrascroll (displays fish targets at higher boat speeds) • See-thru technology (exposes fish hidden in cover) • Fish Symbol ID (helps identify fish targets) • AutoGain technology (minimizes clutter, maximizes targets) • Whiteline (indicates hard or soft bottom) • Water speed capable