Usage Tips:[Pure Brass Metal Inlet] The pure brass and metal thread are heavy-duty which enhances durability. No hassle of frequently installing and removing hoses/faucets. [Built-in Hall Sensor and IC Chip Set] This version upgrades to a built-in Hall sensor and an efficient impeller system. The measurement tolerance is less than 3%. Accurately measures water usage, preventing over-watering. [Easy to Read & Set] With a large LCD screen, you can read information on the water meter more easily. Short press the button to switch modes from Consumption - Flow - Average - Total. Long press the button in Flow mode to switch units (Gallons/Liters). In other modes, long press the button to reset data. The LCD screen automatically goes to sleep after 1 minute of no operation or no water flow. [IPX6 Waterproof] RV flow meter for garden hoses is made of heavy-duty metal and ABS materials, making it weather-resistant and highly resistant to UV rays, sunlight, and rain. The IPX6 waterproof rating ensures more stable outdoor use. [One-Second Installation] water flow meter comes, allowing you to connect to any hose, faucet, sprinkler, and nozzle effortlessly. Simply install it in the direction of the water flow. Colour:Black Material:plastic+brass Size:9x5cm Package Contents: 1 * Water Flow Meter 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.