Hardwired Smoke Alarm with Wireless Module AC 220V-240V with DC 9V Alkaline Battery

Product Name: Hardwired Smoke Alarm with Wireless Module, AC 220V-240V with DC 9V Alkaline Battery Model NO.: TSS895A-HIR Working Principle: Electro-Optical Type Application: Indoor Certification: CE, ISO, RoHS, CCC, Bsi Type: Smoke Alarm Transport Package: Carton Origin: Hangzhou, China Product Description Photoelectric hardwired smoke alarm with wireless module1. Power supply: AC 220V-240V 50Hz, with DC 9V alkaline battery back up.2. Conform to EN14604:2005/AC:2008.3. Alarm volume: ≥85dB/3m.4. Big test button for easily weekly testing.5. Silence function: Approx.10mins.6. Low battery signal alarm.7. Produce life time >10 years.8. Wired interconnection up to 40pcs.9. RF module, 433MHz, wireless interconnection up to 40pcs.10. Push base for easy installation.11. Size: Φ 140mm × 44.9mm.