Thru-Hull Flush Mounted Transducer 

Perfect for water sports which require continuous accurate speed measurements like water-skiing, where boat angles can sometimes interrupt transom mounted senders. 

The thru-hull flush mounted temperature and speed sender offer virtually no drag. Easy installation and accuracy makes this sender the perfect choice for water sports. 

Specifications:

• 30' (10 Meter) Cable Included
• Requires 2" hole in vessel
• Echo-sounding up to 200'
• Reads Water Temperature and Speed
• Useable Shaft Length: 2.25"
• Bare Wire connection

∗Factory P/N SN2031 and AirMar® P/N 31-590-1-41 (Model ST850)