Blue Sea 1811 VSM 422 Tank Sender Gasoline Tank Level [1811] Marine Safety | Personal Flotation Devices This 1" diameter expension mast

This 1" diameter expension mast can be used to increase height of an antenna and thus improve effective range

Amplified for no signal loss

Box Dimensions: 7"H x 14"W x 14"L WT: 5

1-1/2" diameter

Blue Sea 1811 VSM 422 Tank Sender Gasoline Tank Level [1811] Marine Safety | Personal Flotation Devices This 1" diameter expension mast1811 Features: Accurate used with the Vessel Systems Monitor VSM 422 PN 1800 can be precisely calibrated for each tank* Reliable SSI Technologies, Inc. Fluid Trac is non contacting eliminating any mechanical moving parts that can wear and cause intermittent or complete signal loss Digital filtering Eliminates errors due to liquids sloshing in mobile tanks * Calibrated for use with Blue Sea Systems Vessel Systems Monitor VSM 422 only WARNING: This