KY-012 Active Buzzer Module
Features: Min/Max Operating Voltage +3.3V to +5V Maximum Current: 30mA Resonance Frequency: 2500Hz ± 300Hz continous Minimum Sound Output 85Db @ 4in (10cm) Storage Temperature: -22°F to 221°F (-30°C to 105°C) Operating Temperature: -4°F to 158°F (-20°C to 70°C) Dimensions: 0.73in X 0.59in (18.5mm X 15mm)
800 RWF