100% brand new and high qualityFeatures: Made of high quality ABS, it is sturdy, durable and good performance, long service life. Creative wireless height ruler to measure altitude in 3 seconds, high efficiency. Wide measuring range from 5cm to 2m can meet the measurement requirements of the whole family. It will automatically shut down after 6s without working, saving power and extending battery life. LCD display for easy reading. Buzzer operation guidance, convenient to operate. No need to install, just put it flat on the wall, one switch. Height ruler only, other accessories demo in the picture are not included! Specification: Powered by: 3 x AAA batteries (not included) Material: ABS Working Speed: 30mStandby Current: less than 20uAFunction: Buzzer indicator, 1 controlled by buttonsDisplay: LCD display, You can mention them: 0.1cmMeasuring Range: 5cm-2mSize: app.5 x 7.7x22cm/1.97x3.03 x 8.66inColor: GreenQuantity: 1 PcNote: No retail package. Please allow 0-1cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Included:1 x Ultrasonic Ruler Height Measurement