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Quick Details

  • Place of Origin: Fujian, China (Mainland)
  • Brand Name: Karassn system sensor smoke detector
  • Model Number: KS-300DLT
  • Usage: Personal, system sensor smoke detector
  • Color: Ivory White
  • Material: Plastic system sensor smoke detector
  • Frequency: 433.92MHz
  • Working Power: 9.6V-13.8V
  • Alarm Time: 5s
  • Standby Current: 25mA
  • Distance: 8-12m
  • Installation height: 2.2m
  • Warranty: One year

Packaging & Delivery

Packaging Details Each system sensor smoke detector in a color box packing
Delivery Time 25 days only

High sensitivity wired system sensor smoke detector   




Karassn Security Protection Electronics Co., LTD was founded in 2000, cover 6000square meter, employing over 250 staffs. The company had invested over USD1 million establish its own production line and design department. we have our own R&D department. Production line capacity each month is 30,000 sets alarm systems with turnover around USD9.5 million yearly. Manufacturing & exporting more than 50kinds of alarm systems. GSM/PSTN alarm system, Home/Commercial /Industrial alarm system, Wireless Visible alarm system, Wireless Long distance alarm system and wireless/wired accessories.


Brief of system sensor smoke detector:

By adopting double infrared detector together with advanced digital processing technology and automatic
temperature technology, The detector has the advantages of low rate of false alarm and high anti-interference
capability, It detects human radi-ancy infrared heat energy and emit wireless digit signal to activate alarm host.
It is advantage in low rate of false alarm, stable and easy installation.


Mean features:

1.Double infrared sensors with high sensitivity
2.Single-chip intelligent digital process
3.Double channels intelligent signal process
4.Anti-pet, interference-proof, low fault alarm
5.3-level sensitivity setup
6.With crust removing protection function






KS-300DLT system sensor smoke detector



Standby current


Alarm current


Time of self-lock

100 seconds infrared detector

Detective Angle

90° x 35°

Detect Distance

8m-12m for infrared detector




Q: 1. How about the quality of the products?

   A: We produce every product with good quality materials, and test carefully follow our own standard(our testing procedure) or customers requirements to make sure good and stable quality during production. So please don't worry, as we wanna long-term business cooperation with customers.


Q: 2. Can I have a sample order?

   A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.


Q: 3. What is the lead time?

   A:Sample needs 1-2 working days, mass production time needs 5-15 working days depends on order qty.


Q: 4. How to proceed the order if I have logo to print?

   A: Firstly, we will prepare artwork for visual confirmation, if the color and position are alright, we would make sampling first and take a picture for you to confirm before mass production.


Q: 5. How do you ship the goods and how long does it take arrive?

   A: We usually ship by DHL, UPS, FedEx or TNT, or by Air, or by Sea by your request


Q: 6. Do you offer guarantee for the products? 

    A: Yes sure, we offer one year guarantee for the products


Q: 7. Do you accept drop shipping?

    A: Yes, it’s available


Shipment and payment:

Box Size

11.6cm x 6cm x 6.2cm


0.2 KG/BOX



Carton size

50cm x 36cm x 51cm


10 Sets infrared detector


Sample available for system sensor smoke detector


By Air or by sea, also Express SHL/FEDEX/UPS etc.


L/C, T/T, Western Union, Escrow


Why choose us?  

* Professional experience and ability to accept and fulfill ODM/OEM orders.

* Be patient & be careful on work, have strong sense of responsibility;

* One year quality guarantee for our products, lifetime service

* We have ablility and always to research new products for customers with good quality standard and reasonal prices.

* Apply certificate as customers requirements.




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China (Mainland) | Manufacturer, Trading Company
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Supplier's Trade Assurance Limit: US $144,000
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