... (wireless smoke alarm, fire alarm system) 1.EN14604 approved 2.Hush Feature EN14604 approved Wireless Network Smoke Alarm With Hush Feature (wireless ... . Auto-reset when smoke clears12. CE, BSI, TUV, SAI Global approved, comply with EN14604, AS3786 and UL217 standard Operation Temperature5°C ... -6.0 %Obs /mEmission distance>60m DC Operated Wireless Smoke Alarms