Seaguard Marine Digital Corrosion Professional Tester w/Silver & Silver Chloride Reference Cell (SSC) MSRP: $389.99 Marine Digital Corrosion Professional Tester with Silver & Silver Chloride Reference Cell (SSC)The corrosion protection system on your boat should be checked at regular intervals. Failure to do so... Qty in Cart: 0 Quantity ( in cart): Decrease Quantity: Increase Quantity: Price: MSRP: $389.99 Subtotal: Add to Cart