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Specifications

1.Electrochemical sensor 
2.conforms to EN50291 & CE 
3.Test/Hush Button 
4.LCD displayer 
5.Low Battery Alarm 
 

LCD Display Carbon Monoxide Detector LYD-809D

Instructions:

The carbon monoxide alarm is the only battery-operated alarm that includes a backlight digital display feature. This key feature adds an advanced level of protection. The battery operated CO alarm includes multiple mounting options, allowing installation on a wall or tabletop.

This alarm has been carefully designed and tested to detect CO concentration in a residential environment. It provides continuous monitoring of CO levels, even during power outages when many CO incidents occur. The backlit digital display feature allows for easy viewing of carbon monoxide levels from 30-999 PPM (parts per million).

* Motorola IC control, Reliable without false alarming

* Field audio and visible alarming
* Simple installation
* Excellent reliability & high stability 
* Self test function 
* Durable sensor head 
* Less affected by other organic solvent 
* High Accuracy 
* CE and EN50270 Standard

Specifications:

* Power supply: DC9V

* The sensitivity and time:

       50ppm, alarm in 60-90 minutes

      100ppm, alarm in 10 ~ 40 minutes

       300ppm, alarm in 3 minutes

* Standby current:≤10uA "(LCD)," 5uA (LCD).

* Alarm current:≤25mA

* Displaying Range: 0-999PPM

* The electrochemical carbon monoxide sensors. 

* LCD Displayer (optional): 4 digits LCD displayer

* Audibility: 85dB ( at 1m distance ), Frequency 3±0.5KHZ

* Led Indication /Sound Pattern:

     Standby: Green Led flashes once every 30 seconds

     Alarm: Red Led quickly flashes 4 times with unit chirping every 5 seconds, then repeat,

* Low-bat Indicator:Chirp every 30s as battery lower than 3.3V with green LED flashing and Lb on LCD