DC 9-12V DIY Ultrasonic Measuring Kit Multi-function Soldering Practice Training Assembly Electronic Distance Meter Comp

Specifications Type Ultrasonic Distance Measurement KitPower Supply AC 9 12VBoard Size 94mm x 80mmMeasurement Range 0 2 3 meters with a precision to 1cmDifficulty Level Intermediate DIY soldering Application Electronics assembly and hands on trainingNote This is an unassembled kit you will need to solder it Function Description 1 This ultrasonic rangefinder is used for ultrasonic distance measurement The measurement range is 0 2 3 meters with an error of 1cm 2 To ensure measurement accuracy the ultrasonic probe must be kept on a horizontal line and not tilted 3 The board uses some surface mount components This is for practicing soldering surface mount components When soldering surface mount components the soldering iron tip should not be too hot it should be done lightly and quickly otherwise the surface mount components may overheat and be damaged 4 There are four function buttons S1 Press and hold S1 the digital display will freeze indicating that a distance L1 has been determined Release S1 to continue measuring S2 Press and hold S2 the digital display will freeze indicating that a distance L2 has been determined Release S2 to continue measuring S3 The result of multiplying distance L1 and distance L2 Note Due to the limited display capacity of the digital tube only 4 digits can be displayed Therefore the multiplication result is only correct when L1 and L2 are two digits S4 Press S4 The buzzer will sound after 10 seconds Press the