Sharp GP2Y0D810Z0F Distance Sensor - 2cm to 10cm

• Distance sensing range: 2cm to 10cm 
• Sampling rate: 390 Hz 
• Quick response time, small size, and low current draw
• Easy to integrate into your project

Note that these sensors will only tell you if there is an object within the detection range along their lines of sight; they will not tell you how far away the object is.