smoke detector alarm to detector smoke fire alarm  

Product Description LZ-1951 SMOKE ALARMS •10 years battery life time •3V (incorporating non-replaceable lithium battery） •Photoelectric sensing self-check •Loud>85db(A) alarm signal(3M) •Flash alarm indicator(red LED) •Test button •Low Battery signal •Local alarm memory •Nine-minute timer for nominal silence mode •End of life indicator •N.W.:56g(include battery） •Dimensions: Ф46*50mm Product Parameter  Model No. LZ-1951 Standard EN14604:2005/AC:2008 Voltage DC 3V（non-replaceable） Standby current…