Piezoelectric Ultrasonic Air Transducers
(RoHS Compliant)

(Catalog No. 10-)
Transmitter, receiver, or transmitter / receiver units (environmental housing)
25 kHz or 40 kHz signal frequency

high sensitivity excellent sound pressure low cost 10 mm to 25 mm diameter matched pairs available custom specifications welcomed competitive pricing fast delivery Typical Applications automobile sensors proximity sensors object detectors level sensors remote controls motion detectors / intruder alarms pest deterrents toys / games

Our ultrasonic transducers consist of a piezoelectric ceramic element, mounted in an aluminum, plastic, or environmental (sealed) housing. These transducers offer high sensitivity, superb sound pressure level (SPL), and stable electrical and mechanical characteristics, at a choice of bandwidths. Environmental transducers may act as both transmitter and receiver; or separate transmitter or receiver.

Background information about ultrasonic air transducers

Custom Design and Engineering Services
We can custom design air transducers for unique requirements. If the design you need is not listed here, please contact an APCI representative to discuss your specifications.

Standard Ultrasonic Air Transducers
Models listed below are RoHS compliant
Other units are available on request - please inquire.
For data with respect to a specific unit, click on the PDF link.

Aluminum Housing / Screen Mesh Face

Plastic Housing / Flower Mesh Face

Center / Resonance Frequency (kHz)	Output SPL (at 10 V) (dB)	Sensitivity (dB)	Bandwidth (-6 dB) (kHz)	Outer Diameter (mm)	APCI Catalog  No.
25T-16P - (.pdf Spec. Sheet)
	≥112	--	4.0	16	10-1021
25R-16P - (.pdf Spec. Sheet)
	--	≥ -65	3.5	16	10-1026
40T-10P - (.pdf Spec. Sheet)
	≥112	--	4.0	10	10-1051
40R-10P - (.pdf Spec. Sheet)
	--	≥ -69	2.0	10	10-1056
40T-16P - (.pdf Spec. Sheet)
	≥119	--	4.0	16	10-1106
40R-16P - (.pdf Spec. Sheet)
	--	≥ -65	3.5	16	10-1111

*Resonance frequency.