... Frequency:180KHz; 3. Material:stainless steel; 13.8mm Ultrasonic atomizer for humidifier1. Diameter:13.8mm;2. Frequency:180KHz; ... :stainless steel;4. Type:microvoid;5. Static Capacitance:2000±15%pF;6. Operating Life:min.1000h;Usage:used ... equipment, watches, toys, alarm systems, reversing radar, ultrasonic cleaning, ultrasonic atomization, marine fish exploration, the range of ultrasound equipmend ...