Welcome to Defender Canada! 
Tank Monitors
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SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$262.38 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$213.38 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$487.82 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$85.98 -
Groco Tank Level Sensor - 08-0004-02
$455.58 -
Dometic DTM01 Holding Tank Monitor - 313002311
$220.38 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$539.86 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$386.98 -
SCAD Technologies Internal Tank Sensor - 10021
$102.78 -
Vetus Ultrasonic Fluid Level Sensor
$246.98 - $258.18 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$97.18 -
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 -
Vetus Inspection Lid
$25.80 - $92.98 -
Blue Sea Mini OLED Tank Meter
$66.38 - $67.78 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$95.08 -
Raritan Tank Sensor - Float Style - STCFL
$150.38 -
Vetus Diesel Inspection Lid - ILT120B
$126.60 -
Vetus Universal Tank Float Sensor
$218.98 - $322.58 -
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 -
Vetus Fuel Tank Float Sensor - FSENSOR
$73.38 -
Veratron Marine NMEA 2000 Liquid Level Sensor - B00041501
$689.82 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$226.12 - $555.00 -
Veratron Fresh Water Level Sensor with Sealing Kit #930
$226.12 - $550.80 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$360.94 - $689.82 -
Groco Tank Level Sensor Assembly - 450 ASSY
$465.38 -
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!