1.940nm laser complies with Class 1 operation according to IEC . 2.60825-1:2014, 3rd Edition Conditions. 3.Sensor size (20x12.5x7.55mm) 4.Maximum measurement range: 4 meters indoors, accuracy within 5% 5.Measurement range is of target reflectivity The TOF53400 ranging sensor, based on 's VL53L1X, is a laser ranging module that provides accurate and repeatable long-distance measurement. Thanks to its integrated leading-edge SPAD array (single-photon diode) and 's second-generation FlightSense technology, it achieves higher range, more accurate results, and improved immunity to ambient light interference. The TOF53400 also supports serial Modbus-RTU and IIC modes, making it well-suited compatible with a variety of application scenarios. The TOF53400 has a range of up to 4 meters. Operates in high-infrared light environments High optical crosstalk compensation Measurement time: less than 30ms No additional optical components required Single power supply Supports serial port and IIC modes Applications:1.High-speed autofocus 2.Continuous autofocus compatible with video 3.User detection compatible with computers and other devices 4.Obstacle detection Color: Black Material: plastic Package Contents: 1 x TOF53400 2m-4m Laser Distance Sensor Module Only the above package content, other products are not included. Note: Light reflection 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.