YANJEN Battery Operated Stand Alone Carbon Monoxide Detector
This is a smart carbon monoxide alarm adopts high quality electrochemical sensor, combined with advanced electronic technology and sophisticated process, with the advantages of stable operation and long service life.
It can be installed in a variety of ways, such as table placement, ceiling or wall hanging.
Where there is carbon monoxide gas, once the concentration of carbon monoxide gas reaches the alarm set value, the co detector will send out sound and light alarm signals to remind you to take effective measures quickly, so as to effectively avoid fire and explosion.
It's reliable and trustworthy.
Product Specifications:
Model | YJ-811 |
Voltage | DC 3V (2*1.5V AA Batteries) |
Sensor | Electrochemical CO sensor |
Battery Life | 1 year |
Standby Current | ≤10uA |
Alarm Current | ≤25mA |
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. |
Dimension | Φ100(D) x 38(H) mm |
Product Details:
1. DC 3V by battery
2. Low current consumption, ultra-long standby time
3. Battery capacity displaying
4. Alarm memory function (record at most 7 times’ alarm)
5. Digital Display - Displays the level of carbon monoxide the unit is sensing. Shows CO level in PPM.
6.It can be installed in a variety of ways, such as table placement, ceiling or wall hanging
Application:
It should be installed at the bedrooms.

Delivery:
Shipped by sea, economical, long delivery time.
Shipped by DHL, TNT, FedEx etc., quick delivery, much more freight costs.

Easy Installation
The detector must be screwed to your ceiling because that's where smoke heads for when something starts to burn. Do not installed in the high humidity places such as bathroom. And not in the kitchen, you can safely place an smoke detector close to, but not in the kitchen.
1. Choose a right surface and fix the base of the detector with screws
2. Insert batteries into the battery box following the indication of positive and negative poles.
3. Place the host on the base and screw it tight.
4. Installation completes.
Note: There should be no shelter within 0.5 m of the detector
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