Topargee H2F-FM Flush Mount RV Water Tank Gauge

Get a clean, built-in look while taking the guesswork out of your RV freshwater supply. The Topargee H2F-FM Flush Mount Water Tank Gauge provides real-time freshwater monitoring on a large backlit display and installs in the water line—no drilling into the tank required.

Full Product Description

The Topargee H2F-FM Flush Mount Water Tank Gauge is designed for RVers, boaters, and off-grid travelers who want accurate tracking of fresh water with a clean, factory-style installation.
Unlike traditional RV tank monitors that rely on probes inside the tank, the Topargee H2F-FM measures water as it flows through the water line. This gives you a practical way to monitor how much fresh water you are using and how much you have left—without relying on unreliable tank sensors or vague “empty, 1/3, 2/3, full” readings.
The flush-mount design is ideal for dashboards, control panels, cabinet faces, or utility compartments where you want the gauge to look as if it belongs. The large backlit LCD screen is easy to read day or night, and the unit displays water usage in gallons or liters. Topargee lists this model as a 12-volt hardwired gauge with a recessed mount design.
This gauge is especially helpful for dry camping, boondocking, marine use, and any setup where fresh water management matters. Instead of guessing how much water is left, you can make better decisions about showers, dishwashing, refilling, and daily water use.

Key Features

• Flush mount design for a clean, built-in look
• Large backlit digital LCD screen
• Real-time fresh water monitoring
• Displays in gallons or liters
• 12-volt hardwired power only
• Installs in the water line — no drilling into the tank
• Programmable for your tank size
• Works with RVs, trailers, boats, vans, and off-grid water systems
• Freshwater tank use only
• Great for dry camping and boondocking
• Sender lead included
• Extension leads available separately

Why RVers Like It

Most factory RV tank monitors are not very precise. They often give you a rough percentage or a basic light reading, but they do not tell you how much water you actually have left.

The Topargee H2F-FM gives RVers a better way to manage fresh water by tracking the water flowing through the system. That means you can see your water use in real time and better understand how quickly your supply is going down.

For RV owners who camp without hookups, that information matters. It can help stretch your water supply, reduce unnecessary trips to refill, and take some of the stress out of dry camping.

Specifications

Installation Notes

The Topargee H2F-FM sender installs into the RV’s fresh water line. Because the sender mounts in the hose or pipe—not inside the tank—there is no need to drill into the water tank or install probes inside the tank. Topargee notes that compatible plumbing fittings are required to connect the sender to your hose or pipe, including 1/2" BSP Female to 1/2" NPT Male adapters or other suitable standard plumbing fittings, depending on the installation.

 Important: Topargee states that extension and sender leads should not be cut or joined, as doing so can void the warranty.

Best For 

• RVers who want a clean built-in gauge
• Travel trailers and fifth wheels
• Motorhomes
• Boats and marine freshwater systems
• Van builds and off-grid water systems
• Dry camping and boondocking
• RV owners are tired of unreliable factory tank sensors
• Anyone who wants a permanent water monitoring display