BRK FG250B Smoke Alarm, 9 V, Ionization Sensor, 85 dB, Ceiling, Wall Mounting, White

Battery operated, RV approved, ionization smoke alarm with lighted power and alarm indicator, 9 V battery included. With silence feature. Ionization smoke sensors are generally more sensitive at detecting small particles, which tend to be produced in greater amounts by flaming fires. Tamper-resistant locking pin. Hinged cover for easy battery replacement. Meets ANSI/UL217 standard.