Propane Tank Gauge - Compatible with all appliances with QCC1/Type 1 connections and 5-40 lb propane tanks.COLOR ROTATING Luminous Dial - Day or night, no need to lift and shake the propane tank, the rotating luminous dial will tell you if it's red (empty), yellow (low) or green (enough) at a glance.Propane gauges are constructed of 100% premium Material to resist weather, scratches and corrosion.With leak detection function, when the flow suddenly increases, the instrument will limit the flow to protect your safety.Material: Plastic + Metalcolour: As shownPackage Contents:2 x propane gauge(with tape)Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.