Smart Tab Trim Tabs by Lectrotab 12" X 9" f/12'-18' Boats w/60-150 HP [ST1290-60] Brand_GROCO this indicates that it is

this indicates that it is detecting electrical noise

AHD (HD-TVI / HD-CVI)

Spindle Mount (Single Foot)

and output to your chart plotter or PC in real-time

Type / Level: Harmonized Level 70 (USCG and Transport Canada Approved)

Smart Tab Trim Tabs by Lectrotab 12" X 9" f/12'-18' Boats w/60-150 HP [ST1290-60] Brand_GROCO this indicates that it isSmart Tab Trim Tabs 12" X 9" for 12' 18' Boats with 60 150 HP If these trim tabs don't provide you with an outstanding performance increase, contact us within 30 days of your purchase. Why buy a manually adjusting trim tab set when you can get the automatic trim tabs that will self adjust and perform better for less money? The breakthrough technology in trim tabs is completely automatic, requiring no operator adjustment while underway. Nauticus trim