Waterproof Ultrasonic Distance Sensor Module AJ-SR04M

Description

Transmitter and receiver packed in waterproof probe.

Specifications:

• Working voltage: DC: 3.0V-5.5V
• Working current: 30-40mA
• Idle current: 2mA
• Deep sleep current: 20uA
• Probe frequency: 40kHz
• The longest range: 5-8m
• Smallest range: 20cm
• Resolution: about 0.5cm
• Beam angle: 75 degrees
• Working temperature: -20-+70 degree
• Input trigger signal: 1. TTL pulse above 10uS; 2. Serial port sending command 0X55 (Can be operated similar to HCSR04)

Wiring:

• 3-5. 5V (power +)
• Trig (Control) RX
• Echo (output) TX
• GND (power-)