Handheld Ultrasonic Distance Meter, Wal Front, Digital Distance Meter with Large LCD Display for Measuring Rooms via Electronic Tape : Amazon.ca: Tools & Home Improvement
DM-09 Digital Ultrasonic Distance Meter - Metravi Instruments
Amazon.com: HC-SR04 Module Ultrasonic Distance Measuring Sensor with Metal Mounting Bracket Compatible with Raspberry Pi (Raspberry Pi Pico and Other Models), Arduino Ultrasonic Sensor : Industrial & Scientific