Heavy-duty solid brass construction withstands weather, scratches, dents and corrosion. Monitor fuel level without removing the tank. Color-coded dials let you know at a glance when propane levels are low. This propane tank gas gauge can be used with a propane tank gas cylinder, a propane regulator with hose, and a propane adapter. When you turn on the propane to work, it responds quickly to show pressure. Comes with dust cover. Tool-less and easy-to-install, with hand and hand grips for tightening. Great for gas grills, heaters, smokers, camping stoves, lanterns, tabletop grills, fire pit tables, turkey fryers and more propane equipment. Working temperature: 0-+55 Working pressure: 1/2PSI Function: propane tank pressure gauge / leak detector gas pressure gauge universal ACME / QCC1 / Type1 Hook up for RV camper, camping stove, gas grill. Features: 1. Using American standard thread, the connection is firm and compact, and the air tightness is strong. 2. High-quality brass material, thickened valve body, strong pressure resistance, strong corrosion resistance, long service life. 3. Easy to install and use, without any tools, it can be easily tightened with the hand wheel. 4. Comes with a luminous pressure visual gauge, which can visualize the flow of propane, and can be safely shut down when overcurrent. It can also be clearly observed at night, which is more convenient to use. Size: 9*4.5cm. Inner diameter: 2.1cm Outer diameter: 3.3cm