Carbon Monoxide Detector 2 Pack,Battery Operated CO Detector Alarm with Digital LCD Display & Loud 85dB Alarm,Travel Carbon Monoxide Alarm，High Accuracy Portable CO Detector for Home/Hotel/Kitchen/RV

Price: $17.99
(as of Mar 03, 2026 21:45:28 UTC – Details)


1. When the alarm is in the off-screen state, the green LED will flash
once every 15 seconds, indicating that the alarm is in normal
state.
2. When the alarm detects that the CO concentration exceeds
50PPM, the LCD screen lights up, indicating that it has entered
an alarm state.
3. When the alarm detects that the CO concentration exceeds
300PPM, the LCD screen lights up, the red light flashes and an
alarm sounds, indicating that it has entered an alarm state.
LCD screen display instructions:
‘Err’ on the LCD to indicate the unit is malfunctioning.
‘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.
LED status description：
Green LED:
The green LED flashes every 15 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.
What To Do IF The Alarm Sounds
If alarm sounds:
1. Call your emergency services.
2. Immediately move to fresh air – outdoors or by an open door/
window. Do a head count to check that all persons are accounted
for.
Never restart the source of a CO problem until it has been fixed.
Note:
1. Don’t press test/reset button while installing batteries.
Otherwise, the unit will not work.
2.The unit needs to be tested weekly. Verify the unit’s alarm and LED light operation by pushing the test button once a week.
Package included:
2x Alarms
4x Screws
1 x User Manual
1.High Sensitive and Quick Responsive：Build-in Carbon Monoxide Detector Chip and the electrochemical sensor, Enough to detect odorless invisible and deadly carbon monoxide in the air, Quick reaction to save your life in the first time when fire hazard occurs.Portable and easy to install, no socket required, not affected by power outages, can be installed anywhere.
2.Alarm Standard：Designed for Carbon Monoxide,50ppm, alert within 60 to 90 minutes; 100ppm, alert within 10 to 40 minutes; 300ppm, alert within 3 minutes. This portable CO detector has a standby mode, its screen will not be on and no need to worry about being disturbed under a standby mode. Under a standby mode, green led blinks about every 25s.Note: When you test the detector, please do not use gas blow the hole directly.
3.Alarm Warning：When a dangerous level of carbon monoxide is detected the LCD will flashes and a loud alarm pattern will sound–Loud 85 decibel alarm with LED Flash.It is recommended to install more than one in your house for a maximum protection
4.Battery Powered：2 *AAA batteries powered carbon monoxide detector,low current consumption, super long standby time. Friendly Features：Single-button operation -Get started in seconds! Simply insert AAA batteries. (Batteries not included)Continues working during power outages without user intervention The YMDJL carbon monoxide detector is the most beginner-friendly with its straightforward design, ease of use，Easiest to test and maintain
5.This Portable Carbon Monoxide Detector is easy to install，Suitable for many rooms, including living room, bedroom, basement, hall, garage, kitchen，travel, camping, RV and so on.All products have undergone rigorous testing and passed certification, which is safe and reliable. If you have any questions, please feel free to contact us, we will reply you within 24 hours