Smoke Alarm- LX-SO-108A SPECIFICATION Power source: DC9V (cascading battery power) Working current: surveillant current <10uA Alarm current <10mA Alarm volume: >85db Working temperature: -10°C~+50°C Working humidity: ≤95%(40±2°C) Click here to download Instructions Product Enquiry Category: Fire Safety Description Description Power source: DC9V (cascading battery power) Working current: surveillant current <10uA Alarm current <10mA Alarm volume: >85db Working temperature: -10°C~+50°C Working humidity: ≤95%(40±2°C) Related products Fire Safety Fire Man HelmetProduct Enquiry Fire Safety Smoke Alarm- LX-SO-215Product Enquiry Fire Safety Heat Resistant Aluminized SuitProduct Enquiry