ITEM NAME:Hall Effect Flow Meter YF-S201 Hydroponic Water 0-30lpm Descriptio n Description: 1. This product is light and handy in appearance, small in size and easy to install. Product weight: 0.058KG 2. The impeller is inlaid with stainless steel beads, which are always abrasive-resistant. 3. The sealing ring adopts the structure of upper and lower stress, which will never leak. 4. Hall components are imported, and waterproof apron silica gel is used to strengthen the prevention of water intake, never aging. 5. All raw materials meet ROHS testing standards. 6. The standard G1/2 screw tooth interface is more simple and firm to install. Specifications: Light weight, small size, easy to install. Seal Ring with the upper and lower force structure never leaks. Package Included: 1 *Â YF-S201 1/2 "Hall Flowmeter Controlled by Water Flow Sensor Note: 1.Due to the manual measurement and different measurement methods, the actual size could be slightly different. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. We offer you what you need! Hall Effect Flow Meter YF-S201 Hydroponic Water 0-30lpm.Hall components are imported, and waterproof apron silica gel is used to strengthen the prevention of water intake, never aging. Seal Ring with the upper and lower force structure never leaks. We'd like to settle any problem in a friendly manner.