ITEM NAME:G1 / 2 "thread Water Sensor Switch Meter Copper YF-B2 Description: Can use for Water heaters, credit card machines, water vending machine, flow measurement device. Light weight, small size, easy to install. Inlaid with copper impeller shaft, durable wearable. Seal Ring with the upper and lower force structure never leaks Threaded connection: 1 / 2inch Specification: Model: YF-B2 Rated voltage: DC = 5V Water pressure resistance:> 1.75MPa Operating voltage range: DC5 ~ 15V Insulation resistance:> 100M&; Flow pulse characteristics: (8.1Q-3) Q = L / Min  ± 10% Output high pulse:> DC 4.7V (input voltage DC 5V) Working Flow Rating: 1-30 L / min Material: Copper Color: Gold Threaded connection: 1 / 2inch Package Includes: 1 x Water Flow Sensor Switch SKU: DMO0011856551006695.Inlaid with copper impeller shaft, durable wearable. 1 x Water Flow Sensor Switch. Material: Copper. Seal Ring with the upper and lower force structure never leaks. Water pressure resistance:> 1.75MPa.