$1.00 - $10.00
Min. Order : 1000 Pieces

Electrochemical cheap co carbon monoxide detector for home use co alarm en50291 carbon monoxide detector

New Buyer Promotion
Up to US $60 transaction fees waived on the first 3 orders
Trade Assurance
Built-in order protection service in alibaba.com
Product quality
On-time shipment
More on shipping and other trade services.

Quick Details

Port: Shenzhen port
Payment Terms: T/T
Supply Ability: 200000 Piece/Pieces per Month
Warranty: 1 Year
Place of Origin: Guangdong China
Sensor type: electrochemical
Size: 100*38mm
Color: white
Alarm output: LCD display
Model Number: YJ-812
Special Features: 2*1.5V battery
Certification: CE
Brand Name: YANJEN
Product name: Carbon Monoxide Detector
Application: detecting carbon monoxide
Power: DC 3V (2*1.5V AA batteries)
Certificate: CCC and CE
Packaging Detail: Individual gift box for each unit, 100pcs per carbon, 21.5kgs per carbon.
Shenzhen Yanjen Technology Co., Ltd.
Gold Supplier
Response Rate
On-time delivery rate
R&D staffs
Visit Store
Product Description

             Buzzer /  Test button

               Battery capsule 


Mode NO.
Operating voltage
DC 3V (2*1.5V AA Batteries)
electrochemical CO sensor
Standby current
Alarm current
Alarm output
audiovisual alarm
Sound level
85db@10 feet
Alarm level
50ppm,alarm within 60-90minutes 100ppm,alarms within 10-40minutes 300ppm,alarms within 3 minutes  
Φ100(D) x 38(H) mm
Related Products

       Carbon monoxide alarm

           CO and smoke alarm

              Combustible gas detector

Our Company

1. With 10 years of export experience. 
2. Professional team in each department. 
3. Professional test equipment.
4. International and domestic certificate.

Packing & Delivery
Mode NO
Carton Size
Qty / Ctn


With 10 years experience in this field, we now have long term cooperation partner in internation express, air transportation, ocean shipping etc. We are expecting to provide valuable information to our honored clients.


1. Do you worry about our company?
--Definitely not ! 10 years company, welcome company visit once we confirm the meeting.
Alibaba also has verified all our information and offers a guarantee.
2. What is the single most important thing you can do when it coms to fire safety in your home? 
-- All experts agree that without a doubt, the most important step to take is to make sure you have working smoke detectors installed.
3. Why do you choose YANJEN ? Any advantages?
-- The answer is Yes. There are 5 advantages. 
(1) All our products has produced agaist ISO standards,and some owns UL, EN certificates etc. 
(2) Customize: We have strong R&D team, which can make the customized product as your request.
(3) Free OEM service: (a) Silk-printing your Logo(≥1000PCS). (b) Design yourcolor box(≥3000PCS). 
(4)Mix order : We accept mix order, different model and small quantity order. 
(5) After-sale service: (a)2-5 Years Guarantee. (b) If you found any inferior-quality products from us, we will send new ones 
to replace for free in your next order after confirmed.
4. Can I order samples to test the quality?
-- Sure.
5. May I have your catalogue and price list for trial order in MOQ quantity ?
-- All our smoke detectors were shown on alibaba, please have a detailed looking and choose the interested models in our