• Magnetic gas bottle level indicator LC panel
  • Liquid Crystal gas level gauge for LPG Butane Propane
  • Magnetic gas cylinder level indicator for caravans and camping
  • Magnetic gas cylinder level indicator for caravans and camping
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Caravan Motorhome Camping Magnetic Bottle Lpg Butane Propane Patio Gas Level Indicator

Caravan Motorhome Camping Magnetic Bottle Lpg Butane Propane Patio Gas Level Indicator

£3.95 GBP
£3.95 GBP
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  • Free UK Shipping on Orders Over £50
  • Over 10K Happy Customers

Description

Magnetic Gas Bottle Level Indicator – Liquid Crystal (LC)

Never get caught out with an empty gas bottle again. This reusable magnetic indicator gives you a quick, clear reading of how much LPG, Butane or Propane remains in your cylinder.

How it works

Inside every gas bottle, the liquid gas is colder than the warmer vapour above it. When you briefly turn the gas on, evaporation cools the bottle wall at the fill line. The Liquid Crystal (LC) panel reacts to this cooler area and displays a colour band showing exactly where the level is.

It’s simple, reliable, and takes just a few seconds.

Why customers love it

  • Instant reading: shows the level when the gas is turned on briefly
  • Magnetic backing: sticks securely to steel cylinders
  • Reusable: use it again and again
  • No batteries or moving parts
  • Versatile: ideal for caravans, motorhomes, camping, patio heaters and BBQs
  • Compatible gases: LPG, Butane and Propane

Authentic original design

Manufactured using authentic Liquid Crystal technology from the original developers of commercial LC temperature‑sensitive materials. This is the true GLI‑style indicator trusted for years by caravanners and motorhome owners — not a cheap imitation.

Why this one is better

  • Uses authentic Liquid Crystal technology for a clearer colour change
  • Magnetic backing that actually stays on steel cylinders
  • Reusable and reliable — no batteries or electronics
  • Better clarity and consistency than cheap copies

Works with these bottles

  • Calor Butane
  • Calor Propane
  • Patio Gas
  • Flogas cylinders
  • Campingaz (steel bottles only)
  • Most standard steel LPG cylinders

How to use

  1. Place the indicator on the lower half of a steel gas bottle (avoid weld seams).
  2. Turn the gas on for a few seconds.
  3. Watch for the colour band to appear at the fill line.

Dimensions

114 × 50 mm

Frequently Asked Questions

Does this work on all gas bottles?

It works on steel LPG, Butane and Propane cylinders. It will not stick to aluminium or composite bottles.

Do I need to turn the gas on?

Yes — a brief flow of gas creates the temperature difference that reveals the fill line.

Is it reusable?

Yes, the indicator can be used again and again.

Does it need batteries?

No, it uses a Liquid Crystal panel that reacts naturally to temperature changes.

Shipping & Delivery

We ship worldwide using trusted partners, with same-day dispatch on orders placed before 1 pm (subject to stock) and free UK delivery on orders over £50.

Every order is tracked, carefully packed, and arrives in excellent condition — with biodegradable packaging used wherever possible.

Shop with confidence with easy returns and exchanges!

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What Our Customers Say

Great experience from start to finish. The materials were top quality and added a unique touch to our product launch. Arrived on time and well-packaged.
James T
Fantastic service and even better products. The colour change effects are so cool and exactly what we needed. Can’t wait to use them again for future designs!
Amelia K
Really impressed with the colour-changing inks! They worked perfectly for my project and the customer service was super helpful. Fast delivery too — highly recommend
Sophie R

Frequently Asked Questions

Who are Colour Changing ?

Colour Changing is a global pioneer in smart materials, specialising in advanced colour-changing technologies for over 30 years. Founded by Jeremy Dredge, we’ve grown from a family business into an international enterprise with facilities in the UK and Spain, delivering innovative, science-backed solutions worldwide.

What technologies do you offer ?

Our core technologies include thermochromic, photochromic, and hydrochromic inks, paints, and coatings — materials that change colour with temperature, light, or moisture. Every product is developed to the highest standards of quality and performance.

How do you support businesses ?

We help businesses enhance safety, efficiency, and customer engagement through:

  • Intelligent supply chain indicators (shock, tilt, temperature)
  • Covert product authentication features
  • Interactive, eye-catching packaging
  • Memorable promotional products
How do you help creatives and designers ?

Our materials power innovation in:

  • Interactive art that responds to viewers and the environment
  • Product designs with dynamic colour-changing effects
  • Fashion items that shift with light and temperature
What makes Colour Changing different ?

Our team blends science, design, and decades of experience to deliver bespoke, high-performance smart materials. We're driven by innovation and collaboration, helping clients turn creative ideas into real-world impact.

Do you offer custom solutions and support ?

Absolutely. We collaborate closely with clients to develop tailored solutions, offering R&D, material sourcing, consultancy, and support from concept to installation.