Detect both smoke particles and heat in single unit
Operated with single 9V DC block battery with temporary silence function
Single 9V DC block battery for power backup
Battery drawer design for easier battery repalcement
Extra loud alarm sound over 85 dB at 10 feet(3m)
Self-test button
Battery missing indicator
LED operation indicator
CE and Rohs certified
Complies with EN14604, EN54-5 and UL standard
Dimensions: φ107*38mm