Ultrasonic Ranging Alarm Learn To Solder Electronics Kit For Soldering Practicing Diy Kit With Hc-Sr04 Ultrasonic Sensor Module

Item Condition: New

Product Information

• 1. Ranging And Alarm Kit: Composes Of A Hc-Sr04 Ultrasonic Ranging Sensor Module, A Buzzer And A Stc89C25 Chip(Programmed To Use).
• 2. Easy To Solder: Clear Symbols On The Pcb Board For Simple Welding Provide A Good Experience Of Electronics Soldering.
• 3. Two Power Supply Options For Choice: Aaa Battery Or Usb Power Supply. (A Aaa Battery Case And A Usb Cable Included).
• 4. Easy To Setup: Press The +/- Button To Set The Alarm Distance And The Buzzer Will Alarm Loundly When Measurment Distance Is Less Than The Preset One.
• 5. Parameter: 4.5-5.5V Dc. Measurement Distance Range: 1.96" - 157.5". Please Go To "Product Information" Section Below For User Guide If Need..