Tank Monitor

The Best Holding Tank Monitor available on the market

Easy-to-read tank level indicators. Each system can monitor up to four tanks from one convenient location. Each system includes sensors for (2) tanks. Additional sensors are sold separately (part# 15101)

All parts are mounted outside of the tanks eliminates need for special tank fittings.
Reliable electronic design protected for the marine environment.
Can be used with any polyethylene or fiberglass fresh, gray and waste water tanks.
Easy to use.
No maintenance required.
Gold-plated connectors ensure consistent and trouble free performance.
Simple installation.
Low power consumption.
No internal probes or floats
Flush-mounted indicator panel has a smooth surface (no protruding switches or gauge).
Each unit is assembled by hand, individually tested and backed by Raritan's one-year Limited Warranty and legendary technical support team.

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Raritan Tank Monitor

Reliable, Simple, and Built for the Marine Environment

Keep a close eye on your tank levels without the guesswork. The Raritan Tank Monitor is a dependable, easy-to-read solution for tracking your freshwater, greywater, or blackwater tank levels — all from one central display.
Whether you’re out for the weekend or navigating long passages, accurate tank data keeps your systems running smoothly and your crew comfortable.

Why Choose the Raritan Tank Monitor?

Tracks Up to 4 Tanks at Once: Monitor multiple tanks — fresh, waste, or grey — from a single display panel. Each unit includes sensors for two tanks, with optional add-ons for up to four total.
Simple, Clean Installation: The system uses low-profile sensors that mount without needing special tools or drilling into the tank. Add new sensors as your needs grow.
Marine-Grade Durability: Built for life at sea, the monitor is designed to handle motion, moisture, and long-term exposure in demanding conditions.
Visual Confidence at a Glance: LED indicators show clear tank status in real time, giving you peace of mind during operation or at anchor.

Tech Specs & Compatibility

Supports up to 4 tanks
Fresh, grey, and blackwater compatible
Comes standard with 2 sensors (part #15101 for extras)
Compact panel fits most head compartments or nav stations

FAQ

Q: Can I monitor more than two tanks?
Yes — each monitor includes sensors for two tanks and supports up to four with optional sensors.
Q: What types of tanks does it work with?
It works with most marine holding tanks, including fresh water, greywater, and blackwater systems.
Q: Is it hard to install?
Not at all. The sensors mount externally and wiring is minimal, making this ideal for DIY installs or retrofits.
Q: Can this work with other Raritan systems?
Yes. It pairs well with Raritan marine heads and sanitation systems to help manage holding tank levels more effectively.