The product information is as follows:
Name:51 Single Chip Microcomputer Ultrasonic Range Finder / Reversing Radar Alarm HC-SR04 Ultrasonic Range Finder DIY Kit
1. Use high-quality materials with guaranteed quality
2. The ultrasonic distance measuring instrument of single chip microcomputer is designed with single chip microcomputer+HC-SR04 ultrasonic sensor+Nixie tube+button+buzzer
3. The alarm distance can be set. After pressing the setting button, you can press the plus or minus keys to modify the alarm distance, and it has the function of saving after power failure
4. When the measured distance is less than the set distance, the buzzer will alarm
5. The characteristics of this design: wide measurement range, stability, and very convenient operation. It can be used when powered on
Colour:As Shown
Material:electronic
Package Contents:
1 * diy electronic Ultrasonic Rangefinder Kit
Only the above package content, other products are not included.
Note: Light reflection 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 +/- 1-3cm.