Allows you to check the propane volume in your tank quickly and easily. It has built-in leak detection system and automatic shutdown. Fuel flow can be adjusted according to the emergency flow control of the equipment type used. Compatible Type 1 Propane equipment. Colour:As Shown Material:Metal+plastic Package Contents: 1x Outdoor Gas Tank Adapter Only the above package content, other products are not included. Note: Light reflection 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.