Welcome to Defender Canada! 
Tank Monitors
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9% offDometic Multi-Level Tank Monitor System
$495.52$446.03 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$144.57 -
56% offOceanic Systems Submersible Hydrostatic Sensor
$475.08$205.00 -
9% offDometic DTM04 TankWatch 4-Level Tank Monitor System
$524.76$472.35 -
53% offOceanic Systems 4-20mA Tank Level Adaptor - 4291
$394.78$183.10 -
9% offDometic DTM01 Holding Tank Monitor - 313002311
$229.80$206.88 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$484.61 -
56% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$475.08$205.00 -
54% offOceanic Systems Panel-Mounted Holding Tank Pumpout Gauge - 3350-HTPO
$402.08$183.10
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!