ITEM NAME:G1/2" Threaded Water Flow Sensor Switch Flowmeter Water Control 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:> 100MÃŽ © - 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 Included: 1 x Water Flow Sensor Switch.Flow pulse characteristics: (8.1Q-3) Q = L / Min  ± 10%. 1 x Water Flow Sensor Switch. - Inlaid with copper impeller shaft, durable wearable. - Material: Copper. - Water pressure resistance:> 1.75MPa.