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Tank Monitors
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SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$204.99 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$422.99 - $434.99 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$150.99 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$77.99 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$262.99 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$536.85 -
Raritan TankAssure Control Panel with Sensor - 15600
$632.99 -
LIST 3-Level Waste Tank Monitor - TM-332111
$238.99 -
Dometic Multi-Level Tank Monitor System
$398.99 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$94.05 -
Groco Tank Level Sensor - 08-0004-02
$244.99 -
Dometic DTM01 Holding Tank Monitor - 9108688891
$179.99 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$75.99 -
SCAD Technologies Internal Tank Sensor - 10021
$103.99 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$275.99 -
Blue Sea Mini OLED Tank Meter
$51.99 -
Vetus Ultrasonic Fluid Level Sensor
$198.99 - $208.99 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$295.99 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$63.99 -
Vetus Universal Tank Float Sensor
$175.99 - $258.99 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$224.55 - $403.83 -
Raritan Tank Sensor - Float Style - STCFL
$109.99 -
Raritan TankAssure Sensor Kit - 15610
$390.99 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$84.99 -
Maretron Tank Level Sender - TLM150-01
$293.99 -
SCAD Technologies Adapter Plate - 10029
$37.99 -
Raritan Tank Sensor Module Kit - 15101
$123.99 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$98.60 -
LIST 3-Level Water Tank Monitor - TM-331111
$238.99 -
49% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$71.50 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$144.99 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$270.99 -
Vetus Fuel Tank Float Sensor - FSENSOR
$58.99 -
Veratron OceanLink Fresh Water Gauge - 52 mm (2 1/16")
$89.99 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$358.74 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$154.99 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$331.50 -
Faria Euro Black Potable Water Tank Level Gauge - 12831
$30.99 -
Groco Full Color Touchscreen LCD Monitor - 5" - LCD-5
$1,615.99 -
Groco Tank Level Sensor Assembly - 450 ASSY
$319.99 -
Raritan TankAssure NMEA2000 Adapter - 15630
$352.99 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$34.99 -
Thetford Tecma Field-Effect Tank Sensor
$133.95
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!