Sell Carbon Monoxide Detector,CO Alarm Detector Sensor Battery Operated with LCD Digital Display for House Kitchen best price

LCD displayer with a blue back ground light. Loud 85 decibel alarm. Permanent carbon monoxide sensor. The alarm sound pattern is four short alarm beeps. The red LED will flash while in alarm e One 'chirp' every 30 seconds is an indication that the battery is low (need replacement) (green LED still flashes once every 30 seconds) or the unit is malfunctioning ( green LED is out). Aarm memory feature: if the unit ever al, pressing the button, green LED well flashes once every second for one minute and the peak alarm level will indicate on the LCD. Test/Reset button to test the unit electronics and verifies proper unit operational and reset the unit during CO alarm. Green and red LED lights that indicate normal operation and alarm status 3 digits LCD displayer is optional. 'Err' on the LCD to indicate the unit is malfuntioning. 'Lb' on the LCD to indicate it low battery and need replacement. '999ppm' on the LCD to indicate CO level over 999ppm. If the CO leakage is less than 999ppm but over 30ppm, it would show its actual concentration. Blue back light will be lighted when pressing the test button or alarming. The unit will sound 'chirp' and red LED flashes once as power up. Power saving feature: the alarm sound pattern is 4 beeps every 5 seconds for the first 4 minutes. In 4 minutes, it will change to 4 beeps every minute to save the battery. Specification: independent CO gas detector/Carbon monoxide gas detector Power supply:3 AA size 1.5V batteries(Without battery) Sensitivity & time: 50ppm, al within 60-90 minutes 100ppm, al within 10-40 minutes 300ppm, al within 3 minutes Standby current: less than 50uA (without LCD); less than 200uA (with LCD) Alarm Current: less than 75mA Operation Ambient condition:5-40 degree, 20-90%R.H. Colour: white Material: ABS Size: 100 x 37mm Package Contents: 1 x co detector 1 x English manual Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.