Wrist watches, pocket watches, pendant watches.
Low voltage electric power under 600v AC for apartments or residences are Generally used without tvss (transient voltage surge suppressor). These dangerous conditions cause unexpected troubles, breakdown & failure to electric and/or electronic circuits and parts by variety of electric shocks in combination waves with over-voltage and over-current. Actually, damage by surge or transient due to lightings or switching power is increasing continuously. GNS Koreas TVSS(SPD) keeps all sorts of electrical/electronic devices, every kind of facility and equipment & life safely from the dangerous electric power quality caused by induced lighting, transient or surge incoming to electric facilities or equipments.
