Welcome to Defender Canada! 
Tank Monitors
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Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$51.68 -
SCAD Technologies Adapter Plate - 10029
$60.44 -
Blue Sea Mini OLED Tank Meter
$70.66 -
Vetus Fuel Tank Float Sensor - FSENSOR
$76.50 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$79.44 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$89.64 -
Veratron OceanLink Fresh Water Gauge - 52 mm (2 1/16")
$95.50 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$99.13 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$101.32 -
SCAD Technologies Internal Tank Sensor - 10021
$107.16 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$123.24 -
34% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$209.38$136.30 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$144.57 -
Raritan Tank Sensor - Float Style - STCFL
$156.80 -
Raritan Tank Sensor Module Kit - 15101
$181.62 -
53% offOceanic Systems 4-20mA Tank Level Adaptor - 4291
$394.78$183.10 -
54% offOceanic Systems Panel-Mounted Holding Tank Pumpout Gauge - 3350-HTPO
$402.08$183.10 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$204.98 -
56% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$475.08$205.00 -
56% offOceanic Systems Submersible Hydrostatic Sensor
$475.08$205.00 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$222.50 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$226.90 -
Vetus Universal Tank Float Sensor
$228.34 - $336.38 -
Dometic DTM01 Holding Tank Monitor - 313002311
$229.80 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$235.79 - $578.76 -
Vetus Ultrasonic Fluid Level Sensor
$257.54 - $269.22 -
SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$273.60 -
19% offLIST 3-Level Waste Tank Monitor - TM-332111
$346.62$277.42 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$329.08 -
LIST 3-Level Water Tank Monitor - TM-331111
$349.54 -
Groco Tank Level Sensor - 08-0004-02
$355.36 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$376.39 - $719.36 -
Maretron Tank Level Sender - TLM150-01
$380.18 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$384.56 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$396.24 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$403.54 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$484.61 -
Dometic Multi-Level Tank Monitor System
$495.52 -
Raritan TankAssure Sensor Kit - 15610
$521.82 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$524.76 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$562.98 -
Raritan TankAssure NMEA2000 Adapter - 15630
$571.44 -
Raritan Holding Tank Monitor - 1510012
$739.34 -
Raritan TankAssure Control Panel with Sensor - 15600
$860.55
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!