Ultrasonic sensor transmitter
Frequency: 40 KHz
Sound pressure level (at 10V): Greater than 117 dB
Receiver sensitivity (at 40 kHz): Greater than 65dB
Capacitance at 1 kHz, less than 1V (PF): 2000 +/- 30%
Diameter: approx. 16mm
Package content: 2 x ultrasonic transmitter
Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.