smoke detector, smoke alarm, fire detector, fire alarm SD-218 series photoelectric smoke detectors with EN14604 certificate smoke detector, smoke alarm, fire detector, fire alarmFeatures:1) Photoelectric sensing technology 2) Low ... installation and maintenance10) Five-year warranty11) EN14604 approved by BSI Smoke Sensitivity:2.26+/-1.21%/FT Obscuration (EN standard)Battery ...