Welcome to Defender Canada! 
Tank Monitors
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Dometic DTM04 TankWatch 4-Level Tank Monitor System
$487.82 -
Dometic DTM01 Holding Tank Monitor - 313002311
$220.38 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$386.98 -
9% offLIST 3-Level Waste Tank Monitor - TM-332111
$332.40$299.22 -
Blue Sea Systems VSM 422 Vessel Systems Monitor Tank Sender
$160.18 - $161.58 -
Dometic Multi-Level Tank Monitor System
$475.18 -
Blue Sea Mini OLED Tank Meter
$66.38 - $67.78 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$214.80 -
34% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$200.80$130.73 -
19% offLIST 3-Level Water Tank Monitor - TM-331111
$332.40$266.04
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!