Blue Sea 8239 AC Digital Frequency Meter [8239] Marine Plumbing & Ventilation match your rocker type controls

match your rocker type controls in size and appearance

Tempered Glass Viewing Window

If your boat falls between two pilot types

18-9 marine-grade stainless exterior finish provides superior corrosion resistance

The mesh back allows the breeze to cool you on hot days

Blue Sea 8239 AC Digital Frequency Meter [8239] Marine Plumbing & Ventilation match your rocker type controlsAC Digital Frequency Meter Displays frequency from 40 to 90 Hertz 3 levels of display brightness Splashproof front WARNING: This product can expose you to chemicals including di(2 ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov. Owner's Manual (pdf)