9v battery operated wireless smoke alarm RC421-WL
Featured function:
Have the ability to make multi-units connected, if one detector probes smoke and alarm, then others will alarm at an effective area.
Specification:
EN14604 & CE standard
*Power supply:9V DC battery
*photoelectric sensor
*Radio frequency:433.92 MHz
*radio link distance: 50 meters(min) in free space
*maximum link number:20pcs
*Two-Tone LED:
*Red LED indicates alarm
*Green LED indicates radio signal is received
*"battery missing" lockout
*low battery alarm
*high sensitivity
*Humidity range:15% to 95% RH
*operating temperature:-10°c to +50°c
*buit-in sounder to give a minimum sound output of 85dB at 3m
*senses smoke using the light scatter principle
*quick response to Visible smolding smoke
*Test button to monthly checking
