Gía trên chưa bao gồm thuế VAT STANDARD FEATURES • Detects very low density smoke • 200 m2 detection area (2150 ft2) • No filter necessary • N/O or N/C alarm contacts form A, form B • Automatic and manual laser tests • Four selectable sensitivity ranges: *Sensitivity 1: 0.005 to 0.1%/m (0.002 to...