Ultrasonic Movement Detector 1

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Specs on transducers (K20)
Datasheet

Matched 40 kHz transmitter/receiver pair of transducers detects movement at over 23 feet. Separate PCB for mounting the active units. Latch/reset PCB-mounted switch on board. Sensitivity control. 9V battery operation. Transmitter is crystal- locked at 40kHz for maximum efficiency. Main PC board size 2.8in x 1.9in (71mm x 50mm) Small PC board size 2.8in x .5in (71mm x 11mm) (CPS20)

Quantity	Price
1 – 9	$27.13
10 – 99	$25.20
100 +	$24.36

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS20
Quantity Available:		5

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Ultrasonic Movement Detector2

Our first ultrasonic movement detector -CPS20 - has been very popular. This is another circuit design which we believe is more sensitive with fewer components. The transducers are mounted on the same PCB as the circuit.(CPS49)

Quantity	Price
1 – 9	$26.65
10 – 99	$24.75
100 +	$23.93

Skill Level of Item:		(Kit - Basic Soldering Required)
Product #		CPS49
Quantity Available:		8

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