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