Does Xiaomi Smart Laser Measure display horizontal lines? No value?

A horizontal line is displayed to indicate that it cannot be measured. If the measurement range is exceeded, the signal is too weak, the signal is too strong, or the rangefinder moves too fast, it will fail to measure. Please adjust the measurement position, confirm the measurement environment, move the product slowly or keep the device stable.
The laser range finder is generally used indoors, and it is recommended not to use the laser range finder outdoors. In harsh environments such as: too strong sunlight interferes with the laser, which will cause the laser red point to be unclear, and the measurement accuracy will drop significantly; the ambient temperature fluctuates too much, and the reflection effect of the reflective surface is weak; there are foreign objects in the objective lens or laser tube Obstruction; the measurement target is not clear, such as water surface, glass, mirror surface, laser jitter during measurement, etc.; when the battery power is insufficient, the measurement result will also have a large error.

Please refer to the table below for general faults and troubleshooting methods encountered during use:
Information	Reason	Solution
The battery symbol flashes	battery voltage is too low	please charge
Unable to measure display	Laser reflection signal is too weak (e.g. black test surface)	Measure targets with strong reflectivity, or use with target reflectors
	The laser reflection signal is too weak (such as a highly reflective test surface)	Measure targets with strong reflectivity, or use with target reflectors
	Out of measurement range	Please use within the range
	Measurement moves too fast	Please move the product slowly or keep the product steady
Err01	Insufficient power causes the laser to fail to emit	please charge
Err02	Out of operating temperature range	Please use within the specified temperature range