VL53L1X is an advanced flight time system (ToF) in range of the sensor, it is a small ToF sensors, precise measuring range up to 4 m, rapid measuring frequency up to 50Hz, a micro-type reflow can be used encapsulation, integrates the SPAD receiving array stealth Class1 940 nm emitter array, Physical infrared optical filter and optical components, available in environment of lighting conditions to achieve the best range of performance, and to provide a variety of window cover options. different from the traditional infrared sensor, VL53L1X uses STToF technology to measure the absolute distance regardless of the target color and reflectivity. the size of the ROI can also be programmed on the reception matrix Typical full field of view (FoV): 27 The size of the programmable area of interest (ROI) on matrix reception allows the FoV sensor to be reduced I2C interface (up to 400 kHz) Voltage: 3.3-5 v Communication interface: I2C size:4.9x2.5x1.56 mm Material:Metal + plastic colour:red Package Contents: 1 * Module Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.