Product Introduction: The Mobile Signal Life Search and Rescue Instrument is currently a world-leading mobile signal life search and rescue device. It realizes the technology of mobile phone signal search without relying on the public network base stations of operators. It identifies and detects the signals of personnel's portable mobile phones and electronic terminals, counts the number of personnel, and quickly narrows the search range to 1 square meter, greatly improving the precision and accuracy of rescue, as well as rescue efficiency。