Gold Member Since 2014
Audited Supplier
Shenzhen Wale Group Co., Ltd.

Smoke Detector, Independent Smoke Detector, Photoelectric Smoke Detector manufacturer / supplier in China, offering Photoelectric Independent Smoke Detector with Battery (WL-228D), Photoelectric Smoke Detectors with ABS Plastic (WL-258), Wireless Signal Repeater for Alarm System and so on.

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Supplier Homepage Product Smoke Sensor Photoelectric Independent Smoke Detector with Battery (WL-228D)

Photoelectric Independent Smoke Detector with Battery (WL-228D)

Purchase Qty.:
100-499 500-999 1,000+
FOB Unit Price: US $4 US $3.5 US $3
Purchase Qty. (Pieces) FOB Unit Price
100-499 US $4
500-999 US $3.5
1,000+ US $3
Get Latest Price
Production Capacity: 5000 PCS Per Day
Transport Package: Color Box or OEM
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: WL-228D
  • Usage: Smoke Detector
  • Certification: CE, RoHS
  • Power Supply: 9VDC
  • Guarantee: 3 Years Guarantee
  • Volume: 85db
  • Specification: CE, ROHS
  • HS Code: 8531100000
  • Type: Smoke Alarm
  • Installation Mode: Ceiling Mounted
  • Application: Home, Industry, Communication Electronic Products, Special Equipment
  • Certificate: CE and RoHS
  • Working Environment: -10°c~+50°c
  • Trademark: WALE/OEM
  • Origin: Shenzhen, Guangdong
Product Description
Photoelectric Independent Smoke Detector with battery (WL-228D)


1. Independent fire detector
2. Dustproof, mothproof, dampproof
3. anti extraneous light interference

1. Photoelectric detector mode
2. Using low power consumption CMOS micro processor
3. Special design for dampproof
4. Having manual testing and reset function
5. Reliable and stable working performance
6. With super thin structure
7. Dustproof, mothproof and anti extraneous light interference
8. Independent smoke detector


Working voltage9VDC
sensorOptical maze
working currentStatic current≤10mA
Alarm current≤15mA
Sensitivity to smoke comply with UL217 ,testing value is 3.2% per Feet 
Working environment-10°C~+50°C


1. How to download GSM home alarm system APP?
Search "gsm alarm" in iOS APP store, Android store or scan QR code from the package of our products.

2. Warranty
Normally it's one year, but if you can be our agent it will be 2 years.

3. Why choose us?
AS the professional manufacturer in home alarm system with 14 years experience, we developed series of home alarm system with high quality and competitive price. With professional R&D team to provide OEM&ODM service.

4. When can I get the price?
We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please call us by 86-18219207915
5. Are your samples free or need cost?
It can be free, but anyway we have to charge for the samples first, the sample charge can be returned after official order placed.

6. How can I get your samples
You're welcomed to email us for checking. It will be ready for delivery in 3-7 days after payment. The samples will be sent to you by express.
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