Measurement method 1: 1. Let the child stand up straight and attach the measuring instrument to the top of the child's head to observe the level. Position the meter on the ground. 2. After pressing the button to hear the buzzer sound, observe the display data. Measurement method 2: 1. Pick up the tester with one hand and let the bottom of the tester close to the wall; 2. Stand straight near the wall and adjust the height of the tester appropriately. Let the tester lie flat on the top of the head; 3. The tester is fixed, the person will retreat later, press the button, After hearing the wind beep, you can remove the tester observation data. Specifications: Measuring range: 5cm-200cm Measurement error: ±0.5cm Graduation value: 0.1cm Standby current: <20μA Max working current: 30mA Power: 1.5V*3 AAA battery (Not Included) Function: winder prompt, single button control Display mode: LED display Material: ABS Size: 216*32*22mm/8.5*1.25*0.86'' Weight: 70g Tips: Do not have obstructions around when measuring. Notes: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. Package included: 1 x Height Measuring Ruler
