
SFM-27-A
Product Specifications:
– Model: SFM-27;
– Sound Making Type: Intermittent Sound;
– Alarm Height: 15mm
– Alarm Diameter: 29mm
– Alarm Height: 15mm
– 2 Mounting Hole Distance: 40mm
– 2 Wire Length: 105mm
– Rated Voltage: 12V
– Working Voltage: 3-24V
– Rated Current (MAX): 20mA
– Minimum Sound Output 10cm: 95dB
– Resonant Frequency: 3100±500
– Working Temperature: -20~+80(Celsius)
– Color: White
Package Includes:
SFM-27 Intermittent Sound Buzzer Sounder



SFM-20B
Product parameters:
Product size: 23×12 MM
Rated voltage: 12VDC
Operating voltage: 3~24V
Operating frequency: 3300±500Hz
Output sound pressure: 90dB
Operating temperature: -20C~+80C Packing list:
SFM-20B 3-24V continuous sound buzzer *1









Product parameters:
Label model: SFM-3015C
Product name: Piezoelectric buzzer
Voltage: AC220V
Color: White
Delivery list:
Buzzer X1






SFM-27-B Specifications:
Color: White
Size: 30mm cylindrical, 15mm high, 47mm in total length including two ears
Voltage range (V): 3~24
Rated current (mA): ≤30
Sound pressure level (dB): ≥90
Resonant frequency (Hz): 3000±500
Operating temperature (degrees): -30~+80 Package list:
Electronic buzzer*1





