Features: 1. Easy Application – Simply place the Gas Level Indicator on a clean, lower area of your cylinder. Turn on the gas and wait 10 minutes for an accurate reading. 2. Temperature-Adaptive Display – In winter, the left bar activates; in summer, the right bar activates, ensuring reliable readings across seasons. 3. Safe & Accurate Measurement – Made from PET and soft magnetic material, it safely measures gas capacity within a temperature range of -10°C to 120°C, alerting you before the gas runs low. 4. Cost-Effective & Reusable – Helps maximize gas usage from each cylinder. The magnetic backing allows easy attachment and reuse on exchange bottles. 5. Wide Compatibility – Works on both LPG (propane) and butane cylinders. Product Details: This practical propane fuel tank gauge provides clear, temperature-compensated gas level indication. Its durable PET and soft magnetic construction ensures secure placement and long-term reuse. The easy-to-read display helps prevent unexpected gas depletion, saving you money and ensuring convenience. Ideal for home, camping, or workshop use. Specifications: - Color: Black - Material: PET + Soft Magnetic - Size: 10 x 6.3 cm - Quantity: 3 Pieces - Measuring Temperature Range: -10°C to 120°C - Compatible with LPG (propane) and butane cylinders Package Includes: 3 x Gas Level Indicator Note: Slight color variations may occur due to lighting and screen differences. Measurement tolerance is +/- 1-3 cm.