Smoke sensor alarm by monitoring the concentration of smoke to achieve fire prevention, when the smoke concentration exceeds the limit, smoke alarm sound and sound alarm, and the output alarm signal.

Smoke is widely used in urban security, community, factories, companies, schools, families, villas, warehouses, resources, oil, chemicals, gas transmission and distribution and other fields. Sensitive to smoke, so to prevent the occurrence of many fires!

Technical Parameter：
>Working voltage:9V carbon-zinc/alkaline battery
>Standby current:≤10uA  
>Alarm current:≤35mA
>Sensitivity:II Grade
>Alarm sound:＞80dB
>Emission frequency:315MHz/433MHz(Optional)
>Emission distance:≥100m(Open space)
>Working temperature:-10℃~50℃
>Working humidity:10%-90%RH
>Life of battery:＞1year

FAQ
1. A: Are you trading company or factory?
    B: We are a professional manufacturer located in Shenzhen, China.

2. A: Can you accept the sample order?
    B: Yes, welcome to order samples for test. 

3. A: How many languages does alarm system support?
    B: English, simple Chinese, French, German, Spainish, etc. We can meet different market need.

4. A: Where the alarm system will be installed?
    B: It's widely used in home, factory, bank, store, warehouse, supermarket, office, etc.

5.A: Can you provide your catalogue to me?
   B: We specialize in manufacturing and developing all kinds of security alarm system, GSM alarm system, PSTN alarm system, Motion Detectors, door sensor, gas detector, CO detector, smoke detector, etc. Please provide more details, we would provide the catalogu as your requirement.

6. A: Do you have any certificates of your products?
    B: Our products have CE, Rohs, CCC certificates.

7. A: What is the warranty and delivery time?
    B: We provide two years warranty. Delivery time: 2-5 days for sample. 1-3 weeks for bulk order.

8. A: What’s the payment terms?
    B: T/T (bank transfer), Western Union, Paypal, etc. 

9. A: How to ship the products ?
    B: We have long-term cooperation with DHL, UPS, FEDEX, TNT, EMS or by AIR and by SEA. You also can choose your own shipping forwarder.