The Gentex 9000/9003 Series provides an exclusive patented three position test feature that simulates a 0.85% And 3.5% actual smoke condition in full compliance with NFPA 72 And UL Standards. Available in many different models, the 9120/9123 Series is engineered to virtually eliminate nuisance alarms And deliver outstanding performance wherever reliable fire protection is required. The 9000/9003 Series is provided with a 9VDC alkaline battery for back-up in the event building power is lost.
