1. הקדמה
This user manual provides comprehensive instructions for the installation, operation, and maintenance of your Meross CS11 Combo Smoke and Carbon Monoxide Alarm. Please read this manual thoroughly before installation and keep it for future reference. This device is designed to detect both smoke and carbon monoxide (CO) to enhance your home safety.
The Meross CS11 alarm complies with European standards EN 14604 for smoke alarms and EN 50291 for carbon monoxide alarms.
2. פּראָדוקט פֿעיִקייטן
- Dual Sensor Technology: Combines a photoelectric smoke sensor and an electrochemical carbon monoxide sensor for comprehensive protection.
- 10-יאָר באַטאַרייע לעבן: Equipped with a sealed 3V lithium battery designed to last for 10 years, providing continuous protection without battery replacement.
- הויך 85 דציבל שרעק: Emits a powerful 85-decibel alarm at 3 meters to alert occupants effectively in case of an emergency.
- טעסט / שטילקייַט קנעפּל: Allows for easy testing of the alarm's functionality and silencing false alarms.
- Tri-Color LED Indicator: Provides clear visual status indications for normal operation (green), fault/low battery/end-of-life (amber), and alarm/test/silence (red).
- Automatic Self-Verification: The device performs regular self-checks to ensure proper functioning.
- גרינג ינסטאַלירונג: Comes with a mounting bracket and screws for quick and simple ceiling or wall installation.
- Wide Detection Area: Detects carbon monoxide over an area of up to 40 square meters.
3. פּעקל אינהאַלט
ביים אויספּאַקן, ביטע באַשטעטיקן אַז אַלע זאכן וואָס זענען ליסטעד אונטן זענען פאַראַן און אין גוטן צושטאַנד:
- 1 x Meross CS11 Combo Smoke and Carbon Monoxide Alarm
- 1 רענטגענ מאַונטינג קלאַמער
- 2 רענטגענ סקרוז
- 1 x באַניצער מאַנואַל
4. זיכערקייַט אינפֿאָרמאַציע
Please read and understand all safety instructions before installing and operating the alarm. Failure to follow these instructions may result in property damage, injury, or death.
- This alarm is designed for indoor use only.
- Do not paint the alarm. Paint can clog the sensor openings and interfere with the alarm's ability to detect smoke or CO.
- נישט אינסטאלירן אין געביטן מיט הויכער הומידיטי, עקסטרעמע טעמפּעראַטורן, אדער צו פיל שטויב.
- Test the alarm monthly and after any battery change or relocation.
- The 10-year battery is sealed and non-replaceable. Do not attempt to open the unit or replace the battery.
- This device is not intended to replace proper installation and maintenance of fuel-burning appliances, nor the ventilation systems of these appliances.
- Carbon monoxide is invisible, odorless, and tasteless. This alarm is designed to detect CO gas from any source of combustion.
5. סעטאַפּ און ייַנמאָנטירונג
Proper placement and installation are crucial for the effective operation of your Meross CS11 alarm.
5.1 רעקאָמענדירטע לאָקאַציעס
- Install at least one alarm on every level of your home, including basements.
- Place alarms in hallways outside of sleeping areas.
- For best CO detection, install an alarm in or near rooms where fuel-burning appliances are located.
- For best smoke detection, install in the center of the ceiling. If ceiling installation is not possible, install on a wall, at least 10-30 cm (4-12 inches) from the ceiling.
5.2 לאָקאַציעס צו פֿאַרמייַדן
- Within 1 meter (3 feet) of cooking appliances, heating vents, or ceiling fans.
- In extremely dusty, dirty, or greasy areas.
- In direct sunlight or areas with extreme temperature fluctuations.
- In areas with high humidity, such as bathrooms.
5.3 ינסטאַללאַטיאָן סטעפּס
- צוגרייטן די מאַונטינג אָרט: Choose a suitable location according to the guidelines above.
- צוטשעפּען מאַונטינג בראַקאַץ: Use the provided screws to securely attach the mounting bracket to the ceiling or wall.
- מאָנטירן דעם אַלאַרם: Align the alarm with the mounting bracket and twist clockwise until it clicks into place. The alarm will automatically activate upon proper installation.
- פּרובירן די שרעק: After installation, press and hold the Test/Silence button for a few seconds to ensure the alarm sounds. Refer to the "Operating Instructions" section for more details on testing.

Figure 5.3.1: Easy Installation of the Meross CS11 Alarm. The image depicts a person on a ladder installing the alarm on a ceiling, with an inset showing the mounting bracket and screws.
6. אַפּערייטינג ינסטרוקטיאָנס
6.1 געפירט ינדיקאַטאָר סטאַטוס

Figure 6.1.1: Tri-color LED Indication. This image illustrates the different LED colors and their corresponding alarm statuses.
- גרין געפירט: Flashes once every 60 seconds – Indicates normal operation (Standby).
- בורשטין LED: Flashes once every 60 seconds with a chirp – Indicates a fault, low battery, or end-of-life.
- רויט געפירט: Flashes rapidly with loud alarm – Indicates smoke or CO detection (Alarm).
- רויט געפירט: Flashes during test or silence mode.
6.2 טעסטן דעם אלארם
It is recommended to test your alarm monthly to ensure it is functioning correctly.
- Press and hold the Test/Silence button located on the front of the alarm.
- The alarm will emit a series of loud beeps, and the red LED will flash. This indicates the alarm is working.
- Release the button. The alarm will return to normal operation.

Figure 6.2.1: Loud Buzzer Alarm. This image visually represents the 85dB alarm sound emitted by the device.
6.3 שטיל מאַכן דעם אַלאַרם
In case of a non-emergency alarm (e.g., cooking smoke), you can temporarily silence the alarm:
- Press the Test/Silence button once.
- The alarm will enter a temporary silence period (typically 5-10 minutes). The red LED will continue to flash during this period.
- If the smoke or CO concentration remains high after the silence period, the alarm will reactivate.
Warning: Do not silence the alarm without first investigating the cause of the alarm. If the cause is unknown, evacuate the premises immediately.
7. וישאַלט
Regular maintenance ensures the longevity and reliability of your Meross CS11 alarm.
- מאָנטליכע טעסט: Test the alarm monthly using the Test/Silence button.
- רייניקונג: Gently vacuum the alarm cover once a month using a soft brush attachment to remove dust and debris. Do not use cleaning agents or solvents.
- באַטערי: The battery is sealed and designed for 10 years of operation. Do not attempt to replace it. When the battery is low or the unit reaches its end-of-life, the amber LED will flash with a chirp. Replace the entire unit.
8. טראָובלעשאָאָטינג
| פּראָבלעם | מעגלעך סיבה | לייזונג |
|---|---|---|
| Alarm chirps every 60 seconds (Amber LED). | Low battery, fault, or end-of-life. | The battery is sealed. If the alarm is chirping, it indicates the unit needs to be replaced. |
| Alarm sounds frequently without apparent smoke/CO. | False alarm due to cooking fumes, steam, dust, or improper placement. | Press the Test/Silence button. Relocate the alarm if false alarms persist due to environmental factors. Clean the alarm. |
| דער אַלאַרם קלינגט נישט בעת דעם טעסט. | Unit not activated, battery depleted, or unit malfunction. | Ensure the alarm is properly mounted and activated. If it still doesn't work, the unit may be faulty and needs replacement. |
| Green LED not flashing. | Unit not activated or malfunction. | Ensure the alarm is properly mounted and activated. If the issue persists, the unit may be faulty and needs replacement. |
9. ספּעסאַפאַקיישאַנז
| מאָדעל נומער | CS11 |
| מאַכט מקור | Sealed 3V Lithium Battery (non-replaceable, 10-year life) |
| סענסאָר טיפּ | פאָטאָעלעקטריש (רויך), עלעקטראָכעמיש (CO) |
| שרעק הויך | ≥ 85 dB at 3 meters |
| CO דעטעקציע ראַנגע | אַרויף צו 40 מ² |
| אַפּערייטינג טעמפּעראַטור | 0°C צו 40°C (32°F צו 104°F) |
| אַפּערייטינג הומידיטי | ≤ 95% RH (ניט-קאַנדענסינג) |
| דימענסיעס (דיאַמעטער X הייך) | 120 mm x 28 mm (approx. 4.72 in x 1.1 in) |
| וואָג | 135 גראַם (אומגעפער 4.76 אונס) |
| סערטיפיקאַטיאָנס | EN 14604:2005/AC:2008 (Smoke), EN 50291-1:2010 (CO) |
| מאַטעריאַל | ABS |

Figure 9.1.1: Elegant and Compact Design with Component Overview. This image highlights the key external features and dimensions of the alarm.
10. וואָראַנטי אינפֿאָרמאַציע
Specific warranty details are not provided in the product information. Please refer to the official Meross website or contact Meross customer support for detailed warranty terms and conditions applicable to your region.
11. קונה שטיצן
For technical assistance, troubleshooting, or general inquiries, please visit the official Meross support page or contact their customer service. Contact information can typically be found on the Meross webוועבזייטל אדער אויף דער פּראָדוקט פּאַקאַדזשינג.
איר קענט אויך באַזוכן די יו Meross Brand Store on Amazon פֿאַר מער פּראָדוקט אינפֿאָרמאַציע.





