As the 4V4H1D Laser Striping Instrument can also offer such a laser modulation (DETECTOR) function, it can be operated under strong light or outdoor light ,if it is fitted together with a laser receiver.

• 4H1D激光标线仪还具有“激光调制（detector）”功能，配合激光接收器，可以在光线较强的环境或室外使用。