Conforms to EN14604:2005+AC:2008 standard
Conforms to AS3786 standard
Non replaceable (built- in) 3V lithium battery, 10 years long life
Photoelectric chamber for easily detect
Loud>85dB(A)alarm signal @3M
Low battery detect
Hush function/ Fault warning
Easily install with mounting bracket
Intelligent design with Microprocessor(MCU), automatic calibration for accurate sensitivity
High quality Infra-red LED and more sensitive photo-diode.
10-hour non-disturb mode under low battery status advoiding undesired noise
Automatic compensation design with stable performance, suitable for long life operation, lower false alarm rate
Buzzer:wiring connetion instead of spring touch
| Model NO. | OK525SD |
| Operating voltage | DC3V Lithium Battery |
| Main Material | ABS |
| Standard | EN14604:2005+AC:2008 standard |
| Alarm Volume | >85dB(A) @ 3 meters |
| Usable area | 216-431sq.ft |
| Sound level | 85dB/3m |
| Installation | Wall or Ceiling mounted |
| Working environment | 0℃~+45℃,(≤95%RH No congelation) |
| Life Time | 10 Years |
| Function | Fire Alarm |
| 10 hours anti-disturb design when low battery status | |


| 1 | Well trained sales team service for you. |
| 2 | Small MOQ, usually sample is available. |
| 3 | Support OEM & ODM: we can print logo or customs package according to our client's requirement. |
| 4 | Top quality: we have professional QC team to control the quality. |
| 5 | Timely delivery: we can send goods within 10~40 days after payment, it depend on products and quantity. |
| 6 | We work with DHL, UPS, FedEx, TNT and EMS for small order. For large order we can arrange shipment by air or by sea. |
| 7 | Satisfactory service: we treat clients as friends and 24 hours customer service. |
| Welcome to our company and enjoy the benefits of One-stop sourcing service!!! | |