Description 

 AJ-SR04M is an ultrasonic ranging module. This is the industrial product using low-power chip to ensure stability. waterproof probe, stable performance. This module is used to complete the HC-SR04D range module. and serial output format directly to shoot the connection.

Features 

•  Model : AJ-SR04M
•  Ultra-low power 20uA low power consumption. (Battery voltage can be use). 
•  Verity mode operation with different power option.
•  Uses waterproof type ultrasonic probe due to prevent the water dust failure
•  Industrial design, up to 8 meters long range of measurement, blind20cm , high stability.
•  Range measuring distance must be >0.5 squire meter.

Specification 

•  Operating Voltage: 3.3V (3.0V~5.5V)
•  Operating Current : 2mA
•  Low Power Consumption : 20uA
•  Output the echo signal : Output TTL,
•                                         Serial port 5 mode selection
•   Serial output format : 9600 n 8 1
•   Frequency : 40KHz
•   Detection Range : 20cm ~8m
•   Measuring Angle : 80˚ +/-15˚
•   Operating temperature : -20℃ ~ 75℃     

Circuit Application

• Intelligent car range, obstacle avoidance,
• Measurement the distance of object height of body,
• Intelligent traffic control and parking control,
• Teaching and research, security, industrial control
• Artificial intelligence, aircraft height measurement, etc