High Snesitive LCD Display Carbon Monoxide Alarm Detector

Features:
· LCD displayer with a blue back ground light.
· Loud 85 decibel alarm.
· Permanent carbon monoxide sensor.
· Compliance with EN50291 standard.
· Powered by 3× 1.5V AA size batteries.
· The alarm sound pattern is three short alarm beeps. The red LED will flash while in alarm mode.
· Red LED flashes once every minute together with beep alarm sound is an indication that the battery is low
(need replacement).
· Test/Reset button to test the unit electronics and verifiesproper unit operation and reset the unit during CO alarm.
· Alarm memory feature: If the unit ever alarms, pressingthe button, green LED will flashes once every second for one minute and the peak alarm level will be indicated on the LCD.
· Green and red LED lights that indicate normal operation and alarm status.
· The unit will sound 'chirp' and red LED flashes once as power up.
· 3 digits LCD displayer is optional. 'Lo' on the LCD indicates low battery (need replacement) and 'OU' on
The LCD to indicate CO level over 999ppm. In normal condition, LCD is be lit for a long time with "0PPM"
On the LCD. If the CO leakage is less than 20PPM, it should show "0PPM" on the LCD Displayer.
In 4 minutes after the batteries are installed, the unit starts to detect CO.
Green LED: The green LED flashes every 30 seconds to indicate the unit is operating properly.
Red LED: When a dangerous level of carbon monoxide is detected the red LED will flashes and the alarm pattern will sound.
The CARBON MONOXIDE (CO) alarm monitors the air for the presence of CO. The alarm will sound and be accompanied by the flashing red LED light when there are high levels of CO presence.
CAUTION: This alarm will only indicate the presence of
Monoxide at the sensor. Carbon monoxide gas may present at
Other area.
Specification:
Power Supply: 3× 1.5V AA Size batteries.
Sensitivity & Time: 50ppm, alarms within 60~90 minutes
100ppm, alarms within 10~40 minutes
300ppm, alarms within 3 minutes
Standby Current: <40uA;
Alarm Current: <30mA
Operation Ambient Condition: -10~400C; 20~90%R. H.