Features: 1.Waterproof; 2. High Sensitivity; 3. Less Power Consumption; 4. High Reliability. Features: 1.Waterproof; 2. High Sensitivity; 3. Less Power Consumption; 4. High Reliability. 5. Small Angle; 6. Wide temperature range, dirty resistant; 7. Flame retardant;Applications: To test Object position, Liquid depth, Distance, etc.Specifications: ParametersSpecificationFrequency (kHz) 110± ...