Propane Tank Gas Level Indicator Magnet - 2 Pack

Propane Tank Gas Level Indicator Magnet (GLI)

Stop guessing how much propane you have left. This temperature-reactive magnetic indicator helps you visually locate the liquid propane level while propane is actively being used, so you can avoid surprise run-outs during grilling, heating, and outdoor cooking.

How it works (simple science)

When propane flows, the tank wall warms/cools differently where liquid propane sits versus where vapor sits. After a few minutes, that temperature difference creates a visible “level line” on the indicator’s color-changing bars.

Key Benefits

• Fast visual reading (when gas is flowing): Shows the level line after 5–10 minutes of propane use.

• No tools, no batteries: Just clean the surface and snap it on.

• Designed to reduce false readings: Works best with good contact on a smooth, flat spot (not over weld seams).

• Expandable measurement range: Includes 2 indicators so you can stack them to cover more height on the tank.

How to Use (Do this for accurate results)

1. Clean & dry the mounting spot (dirt/condensation reduces contact).

2. Place the magnet on a flat, smooth area near the lowest part of the tank (where the liquid level matters).

3. Avoid weld seams (welds distort the reading).

4. Keep it out of direct sunlight (sunlight can “cheat” the temperature pattern).

5. Turn on your appliance and let propane flow 5–10 minutes.

How to Read It

• Before use: bars typically look uniform in color.

• During use: if the liquid level is within the height of the indicator, the bars shift color and reveal the level line.

• Important: if the propane level is above or below where the indicator sits, the bars may stay the same color (that doesn’t mean it’s broken—your level is just outside the indicator window).

Pro Tip: Stack both indicators one above the other to expand the readable range.

What’s Included

• 2× Propane Tank Gas Level Indicator Magnets (stackable coverage)