1、Specification

1、Voltage : 6-12V(DC)

2、Current : max 2mA

3、Output Signal : 0-5V (Output high when obstacle in range)

4、Sensory Angle : max 15 degree

5、Sensory Distance : 20mm - 5000mm

6、Frequency : 40Khz.

7、Pin : 3pin 

2、Usage

Supply module with 6-12V, the output will be 5V while obstacle in range, or 0V if not.

The out pin of this module is used as a switching output when anti-theft module, and without the feet when ranging modules,

Note : the module should be inserted in the circuit before been power, which avoid producing high level of misoperation ；if not, then power again.

Module Working Principle:

(1) Adopt IO trigger through supplying at least 10us sequence of high level signal,

(2) The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal,

(3) If there is signals returning, through outputting high level and the time of high level continuing is the time of that from the ultrasonic transmitting to  receiving.

Test distance = (high level time * sound velocity (340M/S) / 2,

3、Advantage 

Simple，easy to adopt in any system, Beam angle to avoid disruptions; durable.

1. Probe- Main Technical Parameters:

◇ Center resonant frequency: 40kHz ± 2kHz 
◇ Static capacitance: 3300P ± 300P 
◇ Resonant impedance: 120Ω ± 20Ω 
◇ Frequency bandwidth (-3dB): Δf-3dB ≥ 2kHz 
◇ Operation voltage: 300 ~ 500VP-P 
◇ Limit voltage ≤ 1000VP-P 
◇ Transmitting beam angle: 6O degrees 
◇ Operation temperature: -40 ~ +80 ℃ 
◇ Protection class: IP65

2. Module Performance:
◇ Voltage: DC5V; 
◇ Static current: Less than 2mA; 
◇ Output signal: Electric frequency signal, high level 5V, low level 0V; 
◇ Sensor angle: Not more than 15 degrees; 
◇ Detection distance: 2cm-500cm 
◇ High precision: Up to 0.3cm