Welcome to Defender Canada! 
Tank Monitors
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SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$253.03 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$205.78 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$470.42 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$82.93 -
Groco Tank Level Sensor - 08-0004-02
$439.33 -
Dometic DTM01 Holding Tank Monitor - 313002311
$212.53 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$520.60 -
Dometic Multi-Level Tank Monitor System
$458.23 -
SCAD Technologies Internal Tank Sensor - 10021
$99.13 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$93.73 -
Blue Sea Systems VSM 422 Vessel Systems Monitor Tank Sender
$154.48 - $155.83 -
Blue Sea Mini OLED Tank Meter
$64.03 - $65.38 -
Raritan Tank Sensor - Float Style - STCFL
$145.03 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$91.71 -
LIST 3-Level Waste Tank Monitor - TM-332111
$320.55 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$207.15 -
29% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$193.65$135.73 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$348.07 - $665.21 -
14% offLIST 3-Level Water Tank Monitor - TM-331111
$320.55$272.56
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!