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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: SFL
  • Model Number: K4
  • Usage: Auto
  • Product Size: 150x107x26
  • GSM Frequency: 850/900/1800/1900MHZ
  • Auto Dial & SMS: 5 group phone number
  • Wireless zones: 6 wireless zones
  • Wired zones: 4 wired zones
  • Operating power: 9-12VDC
  • Warranty: 2 Years
  • Backup Power: 3.7V Lithium rechargeable Battery
  • Certificate: CE Approved
  • Wireless Frequency: 315/433 Mhz

Packaging & Delivery

Packaging Details white box, color box, company box or customized
Delivery Time 5-7 days


House security Equipment Home Automation NEW - Wireless GSM Alarm System with LCD Display




Product Description

 General Features


“Gsm alarm system" is a new security protection device special for home, house and office and other applications. It is basing on the wireless GSM communication network, integrated LED Menu display, computer technology and voice communication. When the sensor being triggered, the "GSM alarm system" will make a call or send SMS to owner’s telephone automatically and immediately. 


Technical Parameters



ModelWireless Mobile Call GSM Home Security Burglar Alarm system SFL-K4 
LCD screenYes
Working powerAC100-230V.DC12V
Static Consumption<55mA
Alarm Current<450mA
Defense zones8 Wired and 99 wireless defense zones
Alarm phone numbers6 auto dialer phone numbers, 2 SMS numbers
GSM Frequency850/900/1800/1900MHZ
Siren Volume110dB
Multi-type of armRemote control arm, out arm, home arm,time arm, arm by phone



 Product Image




Company Information



Shenzhen Safety Electronic Technology Co., Ltd. was established in 2004, and is a high-tech private enterprise specializing in the research, development, manufacture, sale and service of security alarm series products. 
Our company always adheres to the business principle of "good faith to win customers, good quality to catch market". Now we have set up offices in more than 20 provinces in China, and we also set up our branch company in Hong Kong named Safety Electronic Technology (HK) Co., Ltd., which is convenient for developing overseas markets. The products sell well in China Mainland, Hong Kong, the United States, Canada, Africa, Europe, the Middle East, India, Thailand, Malaysia and many other countries and regions. 

Over the years, our company has been adhering to scientific and technological innovation. We are dedicated to new product development, improve the absorption of advanced technological process, and establish a perfect quality assurance system to become a leader in security industry.



Delivery & payment details


  • Delivery method negotiated, we will give you our suggestion.                                                              
  • You can check and compare, then make decision.
  • 30% amount prepaid before production for confirming the order.
  • Balance against finished production pictures before delivery.
  • We will help arrange delivery for you on our side. But delivery cost is on your side.
  • Payment Method: T/T or Western Union can be accepted.





1. Advanced wave welding machine equipment.

2. SMT is owned.

3. All the products are manufactured by the way of anti-static, such as antistatic gloves.

4. Special testing tools for smoke and gas leak detectors.

If you have any questions, please contact us. Our company will try our best to provide you with the most satisfying service!!


Transaction History of the Supplier

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Transaction Overview


Transaction Details

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Trade Assurance
China (Mainland)
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Supplier Assessments:
38 Transactions 80,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $164,000
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