Product details:

The 9000/9003 Series of photoelectric smoke alarms is designed for residential applications and commercia/residential, including homes, apartments, hospitals, hotels and motels, in compliance with UL 217, applicable IBC/IFC Standards and NFPA 72. 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 9 VDC alkaline battery for backup in the event building power is lost. The battery impedance is verified and the detector provides a low or missing battery warning.The Gentex 9000/9003 Series provides an exclusive patented threeposition test feature that simulates a 0.85% and 3.5% actual smokecondition in full compliance with NFPA 72 and UL Standards.