RoHS Restriction |The Restriction of Hazardous Substances RoHS Restriction is an acronym for Restriction Of Hazardous Substances. RoHS (also known as Directive ... Read More
Photoelectric Smoke Detectors vs. Ionization Smoke Detectors The crucial difference between a photoelectric smoke detector and an ionization smoke detector is the ... Read More
Piezoelectric Diaphragms, Siren Diaphragms Established in 1998, DSW International has specialized in manufacturing piezo products such as piezoelectric diaphragms, piezo alarms, piezo sirens, ... Read More