Garmin GTEMP10-TH THRU-HULL N2K Temperature SensorThe Garmin GTEMP10 TH Thru Hull NMEA 2000 Temperature Sensor is a rugged, through hull sensor designed for anglers who monitor baitwells and livewells. It delivers fast, precise water temperature readings and easy network integration for a clean, organized boat setup. Through hull, flush bottom design: Smooth, flush bottom reduces turbulence in thru hull installations. High sensitivity temperature sensing: 13 to 140F range with fast response readings.