... even in bright daylight can also be a clear instrument display, suitable for a variety of environmental practicesAutomatic test ... the forging, welding,steel parts, aircraft parts and other testing their various needs. SpecificationsDetection range :0-12000mm, the ... , dB difference between the displayA-type echo freeze: freeze testing pictureVertical Linearity Error: ≤ 3%Level Linearity Error: ≤ 0 ...