photoelectric safety device

例句：

1. 1. The photoelectric safety device is used to prevent accidental contact with electrical equipment.
   光电安全装置用于防止意外接触电气设备。
2. 2. The new photoelectric safety device has improved the accuracy of detection and reduced false alarms.
   新型光电安全装置提高了检测的准确性并减少了误报。
3. 3. The photoelectric safety device was installed in the factory's main control room to ensure worker safety during night shifts.
   在工厂的主控制室安装了光电安全装置，以确保夜班工人的安全。