Welcome to Defender Canada! 
Tank Monitors
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Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$539.86 -
SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$262.38 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$213.38 -
9% offLIST 3-Level Waste Tank Monitor - TM-332111
$332.40$299.22 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$487.82 -
Dometic Multi-Level Tank Monitor System
$475.18 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$95.08 -
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 -
19% offLIST 3-Level Water Tank Monitor - TM-331111
$332.40$266.04 -
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 -
Blue Sea Mini OLED Tank Meter
$66.38 - $67.78 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$386.98 -
Raritan Tank Sensor - Float Style - STCFL
$150.38 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$97.18 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$85.98 -
SCAD Technologies Internal Tank Sensor - 10021
$102.78 -
Blue Sea Systems VSM 422 Vessel Systems Monitor Tank Sender
$160.18 - $161.58 -
Groco Tank Level Sensor - 08-0004-02
$455.58 -
Groco Tank Level Sensor Assembly - 450 ASSY
$465.38 -
Dometic DTM01 Holding Tank Monitor - 313002311
$220.38 -
Vetus Universal Tank Float Sensor
$218.98 - $322.58 -
Vetus Fuel Tank Float Sensor - FSENSOR
$73.38 -
Vetus Diesel Inspection Lid - ILT120B
$126.60 -
Vetus Inspection Lid
$25.80 - $92.98 -
Vetus Ultrasonic Fluid Level Sensor
$246.98 - $258.18
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!