Real-time Distance Meter: After the laser is fired in real-time, the rangefinder will display the current length real-time. Choose a precise and stable second class laser, as close as 5cm and as far as 40m. Double-issue Single-receive, mm Measurement Accuracy: Double-issue Single-receive laser, laser emission-calibration-display data, the accuracy can reach ±3mm. Mijia APP, Multiple Functions: Connect the mobile phone via Bluetooth and link with the Mijia app to realize data synchronization/remarks, length/area/volume calculation, floor plan surveying and mapping, drawing sharing, and other functions. Floor Plan / Real Scene Painting Measurement: You can directly draw a floor plan in the Mijia APP or take real photo and then draw and measure. The measured data is automatically marked to the selected line, APP intelligently adjusts the length of the line according to the marked data. Area / Volume / Length Calculation: You can flexibly select the existing length, width, and height data for area and volume calculations, and you can also simply add and subtract to calculate the length. Remote Measurement: The mobile phone can be used as a "distance finder remote control" to remotely control the rangefinder measurement. It is suitable for the scene where the rangefinder/human-machine separation must be placed at a fixed point.