Kronos 2″ Depth Sounder with In-Hull Transducer 2″ – 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 alarms Programmable Keel off-set Automatic Gain control Back lighting for maximum night vision Metric* or US standard units Easy to install Dual Temp Depth Sounder displays Outside Air temperatures and Water temperatures from 32 F to 200 F.