1. Railway system: train manufacturing, improvement of control automation, detection of rail level, etc.
2. Water conservancy system: dam inspection, etc.
3. Military automation: missiles, tanks, artillery, aircraft, ships, etc.
4. Industrial automation: metallurgy, chemical industry, petroleum exploration, light industry, coal, instrumentation, etc.
5. Automotive industry: four-wheel alignment, road control, engineering vehicle leveling, etc.
6. Machinery industry: the level and position of mechanical workbenches, lathes and cutting workbenches
7. Construction: pitch angle, roll angle and inclination angle of construction equipment, road administration bridge slope detection, etc.
8. Electronic communication industry: radar antenna angle alignment, satellite antenna, elevation angle measurement of TV receivers
9. Others: fields that need to measure and control angles such as biology, medicine, and robotics.
GVDA Digital Protractor GD450M:
