Delivery Time:2-3 weeks
Certification:ISO, CE, ROHS

Outdoor Piezo Ultrasonic Distance Sensor , Distance Measurement Ultrasonic Motion Sensor

Specifications:

Center frequency	40.0±2.0KHz
SPL	≥110dB	0dB=0.0002μbar
Sensitivity	≥-69dB	0dB=1volt/μbar
Directivity	80°±5	-6dB typical
Capacitance	2800±20%pF
Housing material	Aluminum(ABS)
Driving Voltage	≤20Vrms
Ringing	2.0ms

Drawing(mm)

Ultrasonic sensor application in the field of security alarm 
The ultrasonic sensor is a sensor developed by ultrasonic characteristics. Ultrasound as a means of detection, must produce the ultrasonic wave and receiving ultrasonic. The completion of this function is the ultrasonic sensor device. As the emission part and a receiving part using ultrasonic sensors, transmitters to be detection of regional emission amplitude ultrasonic, ultrasonic receiver to receive the reflected, in the absence of a moving object enters a region detected, the reflected waves is the amplitude . When the activity objects into the detection region, the amplitude of ultrasonic wave reflected unequal, and constantly changing, the receiving circuit detection signal to the control circuit changes respond that drives the alarm.