Blackt Electrotech(BT35F): Updated Smoke Detection Sensor Alarm DIY 2 PC Pack

About this item

• Faster/Safer Delivery : Continuous Monitoring system, Alarm Unit with 85 dB Alarm Signal
• Optical Wireless smoke detector/Sensor/ Fault Signal warning (by Audio & visual) / No need any assembly or wiring
• Discharged battery indicator/ Test Button/ 9 Volt Battery can use. (Battery Life more than year*)
• Low Power consumption processing/ Special Anti- Humidity More Customer Care : Whapp/Mb: 9657707702