Description: 1MHz waterproof dual use ultrasonic water flow sensor probe. Monitoring Range: 1-100; Accuracy: 1 Output Voltage: 30V; Power Supply Voltage: 12V 0dB = 3Vp-p,8 Bursts,8 cm: -30dB min Center Frequency: 1.0MHz ±5% Bandwidth: 0.2MHz Specification: Features: High Precision Echo Sensitivity Min. Parallel Resistance: 130? ±30% Capacitance: 1200pF ±20% Max. Input Voltage(Pulse): 500Vp-p Directivity (-3dB): 7 ° ±2 ° Distance of Detection: 0.1~5M Pressure Resistance: 1.5MPa Operating Temperature: 0?~95? Material: PPS Size: 15x8mm/0.59x0.31inch Wire Length: Approx.140mm/5.51inch Package Includes: 1 Piece Water Flow Sensor Probe Note: The above size is measured by hand, please allow slightly difference. Thanks !