The BRK® model No. SA320 is a battery powered single station photoelectric and ionization dual sensor smoke alarm specifically designed for residential and institutional applications including sleeping rooms of hospitals, hotels, motels, dormitories and other multi-family dwellings as defined in standard NFPA 101. Model SA320 complies with UL 217, CSFM, NFPA 72, HUD (Note, Certain HUD battery powered applications may require a 10 years sealed tamper-resistant battery. This alarm does not meet that requirement. Substitute First Alert® SA340B.), FHA and other agencies that model their codes after the above agencies. It meets building codes where battery powered photoelectric and ionization combination smoke alarms are required.

First Alert®, SA320B, Smoke Alarm, Battery Operated, (2) 1.5 VDC AA Alkaline Batteries Power Source, Dual Ionization/Photoelectric Sensor, Alarm: Audio, 85 dB Alert, Green/Red LED Indicator Visual Alert, 10 to 90 % Humidity, 40 to 100 deg F Operating, Plastic, White, 5 in Dia x 2.1 in H Dimensions

• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/First_Alert_1039828_User_Manual.pdf https://www.iesbuy.com//ASSETS/DOCUMENTS/ITEMS/EN/https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/First_Alert_1039828_User_Manual.pdf
• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/IDW_DOCUMENT_58b77fa4cbbcdbf533d0f4cf6b8d1503795e8099d17400fb4cc2a4c27027f2fe.pdf https://www.iesbuy.com//ASSETS/DOCUMENTS/ITEMS/EN/https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/IDW_DOCUMENT_58b77fa4cbbcdbf533d0f4cf6b8d1503795e8099d17400fb4cc2a4c27027f2fe.pdf

• Battery powered photo/ion smoke alarm provides double protection for both flaming and smoldering fires
• Smart Sensing technology helps recognize the difference between nonthreatening conditions and real emergencies to minimize false alarms
• Mute button mutes unnecessary alarms immediately
• You can also test alarm function with the same button
• Easy-access battery door
• There is no need to remove the alarm from the ceiling to change the battery
• Low battery indicator light
• Along with an audible chirp, lets you know that it is time to change batteries
• Utilizes both ionization and photoelectric smoke sensors for maximum protection
• Two silence features alarm silence and low battery silence
• Optipath 360 Technology™
• 10 to 90% relative humidity
• 85 dB at 10 ft audible alarm
• Sensor detects smoldering fires, such as when a lit cigarette ignites clothing or upholstery