SOS Emergency Call Box mainly installed in school, service area. supermarket, subway and so on. It’s convenience for people to find the device and get help.
Introduktion: I nutidens hurtige og stadigt mere sammenkoblede verden er det altafgørende at sikre offentlig sikkerhed og sikkerhed. En effektiv måde at opnå...
In complex and ever-changing industrial environments, the stability and reliability of communication equipment are particularly important. Bad weather and flying...