* Size: (diameter) 125*48mm * Power Source: three 1.5V batteries, one 9V battery * Quiescent current: 80uA * Temperature: -10~+40 * Frequency: 433.92MHZ * Alarm decibel: 85db/3m * test button(RED
LED) * low voltage single * Flash alarm indicator * inter-connected(if one detector sounds, others will sound together) * Solid connections(2 screws) and battery included * The wireless online
smoke alarm can be included in a same system by a LEARN button. When one of the detectors emits the high frequency digital signal (433.92MHZ), the others receive the same signal and will alarm
together to remind users to take measures. * Certificates: CE EN 14604 and R&TTE
* Size: (diameter) 125*48mm
* Power Source: three 1.5V batteries, one 9V battery