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400mV / 4V / 40V / 400V +/- (0
U disk update program
smartphones
Answer: Read manual carefully or consult on internet
Compact Size Light Weight
12v Piezo Buzzer Alarm Speaker 220V Remote Control Relay Kit 400mV / 4V / 40V12V Piezo Buzzer Alarm Speaker has a continuous sound. It can be used as an alarm speaker. This speaker is extremely loud Its sound output is 120db and can be heard from far away. 12V Piezo Buzzer Alarm Speaker Specifications: Product Name Buzzer Sound making Type Continuous Sound Rated Voltage DC 12V Rated Current 350mA Harmonic Frequency 3000 500Hz Sound Decibel greater than equal 120dB Overall Size 6. 4 x 5. 5cm 2. 6 x 2. 2(L*D) Wire Length 90cm
