Tank Monitors
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SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$262.38 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$315.58 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$213.38 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$85.98 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$595.70 -
Groco Tank Level Sensor - 08-0004-02
$340.78 -
Dometic Multi-Level Tank Monitor System
$475.18 -
Dometic DTM01 Holding Tank Monitor - 313002311
$220.38 -
SCAD Technologies Internal Tank Sensor - 10021
$102.78 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$368.78 -
Vetus Universal Tank Float Sensor
$218.98 - $322.58 -
LIST 3-Level Waste Tank Monitor - TM-332111
$332.40 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$97.18 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$118.20 -
Raritan Holding Tank Monitor - 1510012
$708.98 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$76.20 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$386.98 -
53% off
Oceanic Systems 4-20mA Tank Level Adaptor - 4291
$378.58$175.60 -
Raritan TankAssure Control Panel with Sensor - 15600
$825.21 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$217.60 -
Blue Sea Mini OLED Tank Meter
$69.18 - $73.38 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$379.98 -
Vetus Ultrasonic Fluid Level Sensor
$246.98 - $258.18 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$249.57 - $612.47 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$138.66 -
Raritan Tank Sensor - Float Style - STCFL
$150.38 -
Raritan Tank Sensor Module Kit - 15101
$174.18 -
Maretron Tank Level Sender - TLM150-01
$364.58 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$104.93 -
LIST 3-Level Water Tank Monitor - TM-331111
$335.20 -
Vetus Fuel Tank Float Sensor - FSENSOR
$73.38 -
Veratron OceanLink Fresh Water Gauge - 52 mm (2 1/16")
$121.70 -
56% off
Oceanic Systems Deck-Mounted Water Gauge - 5250-W
$455.58$196.60 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$503.22 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$196.58 -
56% off
Oceanic Systems Submersible Hydrostatic Sensor
$455.58$196.60 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$49.58 -
34% off
LIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$200.80$130.73 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$398.25 - $761.28 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$464.72 -
54% off
Oceanic Systems Panel-Mounted Holding Tank Pumpout Gauge - 3350-HTPO
$385.58$175.60 -
Raritan TankAssure Sensor Kit - 15610
$500.40 -
Raritan TankAssure NMEA2000 Adapter - 15630
$547.98
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!