EFA-126 
Type: Piezo Alarm /Fire Alarm
Rated Voltage:24VDC
Operating Voltage:15-30VDC
Max. Rated Current:
Min.SPL:≥91dB
Resonant Frequency:
Tone Nature:Siren/Fire
Housing:
Operat. Temperature:-10C--50C

EFA-186 
Type: Piezo Alarm /Fire Alarm
The name of:-10+55oC
Circumstance temperature:≤95%RH
Circumstance humidity:DC24±15%V
Work voltage:200MA
Wore current(average):≥1.2Ws
Flash intension:≥1.2Ws
Flash cycle:85-120S
Sound pressure lever:≥100Db
Life-span of flash lamp:≥10000
Measure:105x80x65MM