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Tank Monitors
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SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$204.99 -
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 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$422.99 - $434.99 -
LIST 3-Level Waste Tank Monitor - TM-332111
$238.99 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$275.99 -
Groco Tank Level Sensor - 08-0004-02
$244.99 -
Thetford Tecma Field-Effect Tank Sensor
$133.95 -
Dometic DTM01 Holding Tank Monitor - 9108688891
$179.99 -
Raritan TankAssure Control Panel with Sensor - 15600
$632.99 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$75.99 -
Dometic Multi-Level Tank Monitor System
$398.99 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$94.05 -
SCAD Technologies Internal Tank Sensor - 10021
$103.99 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$63.99 -
Vetus Ultrasonic Fluid Level Sensor
$198.99 - $208.99 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$224.55 - $403.83 -
Maretron Tank Level Sender - TLM150-01
$293.99 -
Vetus Universal Tank Float Sensor
$175.99 - $258.99 -
Raritan TankAssure Sensor Kit - 15610
$390.99 -
Raritan Tank Sensor - Float Style - STCFL
$109.99 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$536.85 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$84.99 -
Blue Sea Mini OLED Tank Meter
$51.99 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$98.60 -
Raritan Tank Sensor Module Kit - 15101
$123.99 -
SCAD Technologies Adapter Plate - 10029
$37.99 -
LIST 3-Level Water Tank Monitor - TM-331111
$238.99 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$144.99 -
Vetus Fuel Tank Float Sensor - FSENSOR
$58.99 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$270.99 -
Veratron OceanLink Fresh Water Gauge - 52 mm (2 1/16")
$89.99 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$358.74 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$295.99 -
Groco Full Color Touchscreen LCD Monitor - 5" - LCD-5
$1,615.99 -
Faria Euro Black Potable Water Tank Level Gauge - 12831
$30.99 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$331.50 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$154.99 -
40% off MSRPMSRP (Manufacturer's Suggested Retail Price)Set by the manufacturer and displayed for comparison purposes only.
LIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
MSRP: $142.99$85.79 -
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
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!