Welcome to Defender Canada! 
Tank Monitors
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Groco Tank Level Sensor - 08-0004-02
$340.78 -
56% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$455.58$196.60 -
53% offOceanic Systems 4-20mA Tank Level Adaptor - 4291
$378.58$175.60 -
56% offOceanic Systems Submersible Hydrostatic Sensor
$455.58$196.60 -
54% offOceanic Systems Panel-Mounted Holding Tank Pumpout Gauge - 3350-HTPO
$385.58$175.60 -
Groco Tank Level Sensor Assembly - 450 ASSY
$445.78 -
Groco Full Color Touchscreen LCD Monitor - 5" - LCD-5
$2,232.20
About Tank Monitors
Tank Monitors
Monitoring water tank levels can be tricky and gauges are essential on boats. Some tanks must stay full while other tanks need to be bled as the gauge creeps up. A wide variety of single level gauges available at Defender are designed to monitor water tank levels in individual tanks. LED panel marine tank monitor systems and sensors do the same thing in multiples. Monitors basically offer one base for keeping an eye on all your tanks at the flip of a switch - even at night!