Features: 3/4'' G1'' Hall Effect Flowmeter Control Water Flows Sensors The working voltage: DC110V AC110V Waterproof, heat resistance, pressurresistance, cold resistance, small size, stable and reliable. Easy to install. 3/4'' G1'' male thread to fit on water pipe well. The flowmeter can be used in a wide ranges of instruments to measure the Flows of fluid in pipes. Mainly used for water Flows control of electric appliances such as water heaters, humidifiers, drinking fountains. Specifications: Material:Nylon,Brass Type:3/4'' , G1'' (optional) Working Flows ranges:2.3-3L/Min (3/4'' ),3-4L/Min (G1'' ) Power supply current: DC100V, AC110V 0.5A Switching power: 10W Working Flows range: 2-45L/min Starting Flows range: 2.3-3L/min Closed Flows range: 1.8-2.5L/min Insulation resistance: 100M Installation method: Install vertically in the direction of the arrows (when the customer assembles the entire machine, the water Flows switches should be kept away from the magnetic source or magnetic object by more than 2CM to avoid affecting the sensitivity of the Flows switches) Package Includes: 1x Water Flows Sensors note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.