Welcome to our shop! This distance measuring module and sensor is small in size, convenient to use, and can accurately measure distance. It has low voltage, low power consumption, and stable performance. With high measuring precision and strong anti-interference ability, it is suitable for wet and harsh measurement occasions due to its integration with a wire enclosed water-resistant sensor. This module is widely used for horizontal distance measuring, obstacle avoidance, automatic control, security, industrial control, and more. Specifications: - Working Voltage: DC5V - Quiescent Working Current: 5mA - Total Working Current: 30mA - Wave Transmit Frequency: 40kHz - Max. Measuring Distance: 5m - Blind Zone: 25cm - Size: 28.5*41mm - Resolution: Approximately 0.5cm - Angle: <50 degrees - Working Temperature: -10℃~70℃ - Storage Temperature: -20℃~80℃ Wiring: - +5V (power supply positive) - Trig (control) Rx - Echo (receive) Tx - GND (power supply negative) The basic working principle is that the module sends a trigger signal to measure the distance, and it automatically detects the return signal. The distance is calculated based on the time of the ultrasonic wave from sending to returning. The module is simple to use and provides accurate measurements. Please note that the new and old types of this product will be sent randomly. 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.