Welcome to Defender Canada! 
Tank Monitors
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Dometic DTM04 TankWatch 4-Level Tank Monitor System
$519.02 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$304.33 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$574.44 -
Dometic Multi-Level Tank Monitor System
$489.28 -
Dometic DTM01 Holding Tank Monitor - 313002311
$221.98 -
SCAD Technologies Internal Tank Sensor - 10021
$99.13 -
Maretron Tank Level Sender - TLM150-01
$373.18 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$377.23 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$80.25 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$93.73 -
Raritan Holding Tank Monitor - 1510012
$683.68 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$93.75 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$373.18 -
LIST 3-Level Waste Tank Monitor - TM-332111
$320.55 -
Vetus Universal Tank Float Sensor
$211.18 - $311.08 -
Vetus Ultrasonic Fluid Level Sensor
$238.18 - $248.98 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$240.68 - $590.61 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$133.73 -
Blue Sea Mini OLED Tank Meter
$70.78 -
Raritan Tank Sensor Module Kit - 15101
$167.98 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$101.20 -
Raritan TankAssure Control Panel with Sensor - 15600
$795.76 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$366.43 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$209.85 -
64% offOceanic Systems 4-20mA Tank Level Adaptor - 4291
$365.08$128.17 -
56% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$439.33$189.60 -
Raritan Tank Sensor - Float Style - STCFL
$145.03 -
Vetus Fuel Tank Float Sensor - FSENSOR
$70.78 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$216.58 -
56% offOceanic Systems Submersible Hydrostatic Sensor
$439.33$189.60 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$47.83 -
39% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$193.65$116.43 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$384.05 - $734.11 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$448.14 -
Raritan TankAssure Sensor Kit - 15610
$482.55 -
Raritan TankAssure NMEA2000 Adapter - 15630
$528.43
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!