BRK Electronics First Alert Low Profile PR710B 10 Year Sealed Lithium Power Battery Operated Photoelectric Smoke Alarm

Low profile design. Tamperproof 10 year sealed lithium powercell photoelectric smoke alarm with silence feature. Tamper resistant - Locks alarm to mounting bracket to prevent removal of alarm. 10-Year Lithium Power-10 years of continuous protection. No battery change required. Provides audible notice when alarm has reached its end of life. Photoelectric smoke sensing technology Silence feature Tamper Resistant-Locks alarm to mounting bracket to prevent removal of battery and/or alarm. Perfect for apartment, dormitory or hotel applications. 10-Years Limited Warranty Model: PR710B Alarm Dimensions: 5.2”Dia. x 1.13”H Weight: 6.0 oz Operating Voltage: 3V Lithium Power Cell Temperature Range: 40°F (4°C) to 100°F (38°C) Humidity Range: 10% to 95% relative humidity (RH) Audio Alarm: 85dB at 10 feet Test/Silence: Electronically simulates smoke condition, cau