Usage Tips:Features: and Stable performance: simple working principle, stable and reliable performance, long working life, light volume. Withstand strong pressure: It can be used in a large liquid pressure range, and can withstand more than 1MPA at most. High degree of protection: it can be used in indoor or outdoor environments. Adjustable: The flow range can be adjusted, allowing the user to select the flow setting value according to the needs of the system. Wide range of applications: it can be used in swimming pool equipment, gas meters, water meters, coffee machines, water heaters, and central air conditioners. Package Includes: 1x Water Flow Switch Sensor Specifications: Material: Plastic, Metal Working Voltage: 100V Working Temperature: -10~100 Measuring Range: 1L/min Working Current: 0.5A Maximum Temperature Resistance: 100 Power Supply: 100V 3c Rated Voltage Range: 100V note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.