Kronos 2 Depth Sounder with In-Hull Transducer2 - Hole size: 2.0625 (53mm)The Depth Sounders from Faria offer a 3'-199' (61M) depth capability, with an automatic gain control, backlighting for maximum night vision, keel offset, and deep and shallow water alarms.Depth can be read in meters*, and feet. With its oversized back-lit display depth can be easily read in any condition. Audible and Visual alarms let the boater know when a shallow or deep water condition exist. A programmable keel offset lets you adjust the offset from the keel at the display.*Some dual temperature, depth sounders have not been programmed for metric units.Features:Depth Range: 1- 61M (3 -199')Deep and Shallow water alarmsProgrammable Keel off-setAutomatic Gain controlBack lighting for maximum night visionMetric* or US standard unitsEasy to installDual Temp Depth Sounder displays Outside Air temperatures and Water temperatures from 32deg F to 200degF.