Welcome to Defender Canada! 
Tank Monitors
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Groco Tank Level Sensor - 08-0004-02
$355.36 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$223.98 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$101.32 -
Raritan Holding Tank Monitor - 1510012
$739.34 -
Raritan TankAssure Control Panel with Sensor - 15600
$860.55 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$396.24 -
9% offLIST 3-Level Waste Tank Monitor - TM-332111
$346.62$312.02 -
19% offLIST 3-Level Water Tank Monitor - TM-331111
$346.62$277.42 -
Raritan Tank Sensor Module Kit - 15101
$181.62 -
Raritan Tank Sensor - Float Style - STCFL
$156.80 -
34% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$209.38$136.30 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$51.68 -
Groco Full Color Touchscreen LCD Monitor - 5" - LCD-5
$2,186.22 -
Raritan TankAssure Sensor Kit - 15610
$521.82 -
Raritan TankAssure NMEA2000 Adapter - 15630
$571.44 -
Groco Tank Level Sensor Assembly - 450 ASSY
$464.86
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!