Buzzers, Sounders & Ultrasonics

Electric Buzzer 12VDC 25mA (actual range 9VDC to 15VDC)

Dimensions 33.5 X 17 x 15mm (h) 

100mm red & black wires

Sound output: 70-75dB@30cm

Frequency: 400Hz ±20%

Very Loud Piezo Siren 105db, with mounting flange.

Piercing Siren Tone. Centre frequency approx 2KHz. 6-15VDC,

85mA/105dB @ 1M.

W 42mm. H 27.5mm. D 52mm

Fixing Centres 58mm

Piezo Element 27mm diameter

Ultrasonic Transducer - Transmitter at 25KHz

It sends a piercing sound omnidirectionally. Cannot be heard by normal human ears, but sends frightening sound to horses, cats, dogs, mice, rats, birds etc etc. 25KHz presents a lower frequency sound than conventional 40KHz transducers and is more effective in animal and pest control.

Ultrasonic Transducer - Receiver at 40KHz. Sensitivity 65dB. 30K impedance. Matched for transmitting on MA40T

Ultrasonic Transducer - Transmitter at 40KHz. Sensitivity 106dB. 500R impedance. Matched for receiving on MA40R