Nanning police launched ten security precautions

On March 27, the Nanning Public Security Bureau launched its "Basic Line" campaign, unveiling the top ten home and business security measures to help citizens better protect themselves. From smart alarms to anti-climbing devices, these solutions aim to make homes safer and reduce the risk of theft. One of the key innovations is the use of **smart alarms** combined with **wireless monitoring probes**, often referred to as a “Smart Housekeeper.” This system automatically activates when the house is empty. If someone breaks in, the alarm sounds, and it sends an alert to the homeowner’s phone. The user can then check the live feed via the camera and even use a voice feature to scare off intruders or call for help. Another effective measure is **anti-climbing protection** on sewer and gas pipes. By attaching barbed wire, nails, or applying grease, it becomes nearly impossible for burglars to climb into the house through these routes. Many neighborhoods in Nanning have already adopted this method with great success. For doors and windows, **door and window alarms** are a simple yet effective solution. These alarms trigger when a door or window is forced open, deterring thieves and giving homeowners time to respond. The **disconnection alarm** is another clever tool. It’s installed inside anti-theft nets and triggers an alarm if the net is cut. This provides an extra layer of security without being too expensive. Highly realistic **monitoring cameras** are also recommended. These fake-looking cameras, paired with warning signs, can confuse and deter criminals. They’re affordable and easy to install. For laptop users, **anti-theft devices** like locks that attach to desks or tables are a practical choice. They’re especially useful in offices, dorms, and retail environments. Women can benefit from **personal safety gadgets**, such as pepper sprays, small mirrors, and whistles. These tools allow them to defend themselves in emergencies and call for help quickly. Drivers should consider using **drowsy driving alarms**. These devices alert drivers when they start to fall asleep, reducing the risk of accidents during long trips. In rural areas, **collective cattle pens** have proven successful in preventing livestock theft. Villagers take turns watching over the animals, and some use video surveillance and alarms to keep the area secure. Finally, **construction site security** has been improved by placing guards at high points with searchlights, walkie-talkies, and whistles. This setup helps detect and prevent theft, creating a safer environment for workers and materials. These security measures are not only practical but also cost-effective, making them accessible for many households and businesses. Whether you're at home, traveling, or working in a vulnerable area, taking proactive steps can significantly improve your safety.

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Handling Gratings: Gratings require special handling, making them prone to fingerprints and aerosols. Gratings should only be handled by the edges.

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Specifications:
Ruled area: <=70 * 70mm 
Wavelength range: 0.2-0.8um 
Grooves per mm: 1,200 to 3,600L/mm
Diffraction: >70% 
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Specifications:
Ruled area: <=70 * 70mm 
Wavelength range: 0.2-15um 
Grooves per mm: 50 to 2,400L/mm 
Diffraction: >70%
Concave gratings:
Specifications:
Ruled area: <=70 * 70mm 
Wavelength range: 200 to 900um 
Grooves per mm: 490 to 1,200L/mm 
Diffraction: >70%

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