Welcome to Defender Canada! 
Tank Monitors
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9% offBlue Sea Systems M2 OLED Digital Tank Monitor - 1839
$381.46$343.38 -
Vetus Ultrasonic Fluid Level Sensor
$243.46 - $254.50 -
Vetus Universal Tank Float Sensor
$215.86 - $317.98 -
9% off
Blue Sea Mini OLED Tank Meter
$72.34$65.17 -
64% offOceanic Systems 4-20mA Tank Level Adaptor - 4291
$373.18$131.01 -
56% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$449.08$193.80 -
Vetus Fuel Tank Float Sensor - FSENSOR
$72.34 -
39% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$197.94$119.00 -
14% offRaritan TankAssure Control Panel with Sensor - 15600
$813.43$691.51
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!