1. The laser rangefinder is a high-precision instrument that integrates light, machine and electricity. It should be handled with care during use. It is strictly forbidden to knead or fall from a height to avoid damage to the instrument.
2. Use a soft dry cloth to clean the eyepiece, objective lens or laser emission window. Scribing with hard objects is strictly prohibited to avoid damage to optical functions.
3. Always check the appearance of the instrument and shovel away the dust, grease, mildew, etc. on the meter.
