Battery-powered LED 85dB Rebel Carbon Monoxide Detector (SKU: RB-0900)
Protect your loved ones from an invisible and extremely dangerous threat. The Rebel 85dB LED Battery-Powered Carbon Monoxide Detector is an essential safety device for any home that uses fossil fuel appliances. Carbon monoxide (CO) is an odorless, colorless, and tasteless gas that cannot be detected by the human senses. This high-quality detector operates continuously 24 hours a day and warns you of danger in time, even before the gas concentration reaches fatal levels.
Thanks to its advanced electrochemical sensor and extremely loud alarm, the device provides complete peace and security in your house, apartment or weekend cottage. Since it is battery-operated, it protects your home without interruption even in the event of a power outage.
Key benefits of the Rebel carbon monoxide detector

Reliable electrochemical sensor: Extremely precise technology detects even the smallest concentrations of toxic CO gas in the air and ensures stable measurement without false alarms.
Loud 85 dB audible alarm: When the safe gas level is exceeded, the device emits a strong audible signal that will reliably wake you up even from a deep sleep or you will hear it through a closed door.
Clear LED visual alerts: Built-in light-emitting diodes (LEDs) provide a quick overview of the device's status - indicating proper operation, warning of danger or the need to replace batteries.
Complete independence from the grid: Powered by three AA batteries, the detector will work even during power outages when heating systems are particularly active.
Long lifespan: The built-in sensor has a lifespan of up to 10 years, providing you with long-lasting, worry-free protection.
Easy installation: Two screws are included for quick wall mounting, and the device can also be used as a freestanding unit on a flat surface.

Technical specifications and features
The Rebel RB-0900 carbon monoxide detector is designed to the highest safety standards. Below are the detailed technical specifications of the device:

Sensor type: Electrochemical
Detected gas: Carbon monoxide (CO)
Sensor lifespan: Up to 10 years
Alarm volume: >= 85 dB at a distance of 3 meters
Alarm type: Audible and light (LEDs)
TEST button: For easy operation check of the device
Low battery warning: Audible and visual signal
Power supply: 3x AA batteries (battery life up to 2 years)
Standby current consumption: =< 15 µA
Current consumption during alarm: < 65 mA
Mounting method: Wall-mounted or freestanding
Operating temperature: -10 °C to +45 °C
Relative humidity: < 93% (non-condensing)
Dimensions: 107 x 77 x 36 mm
Weight: 116g
Kit includes: Detector, 2 mounting screws

Sensor response times depending on CO concentration
The detector responds extremely quickly and adjusts the alarm triggering speed depending on the level of threat in the room:

At CO level 27 ± 3 ppm: alarm is triggered within 120 minutes
At a CO level of 55 ± 5 ppm: alarm is triggered within 60 to 90 minutes
At CO level 110 ± 10 ppm: alarm is triggered within 10 to 40 minutes
At CO level 330 ± 30 ppm: alarm is triggered within 0 to 3 minutes

How to properly install and use the detector?
For maximum efficiency, it is recommended to install the detector in rooms where you spend the most time (bedrooms, living rooms), and near potential sources of gas leakage (ovens, gas stoves, fireplaces, water heaters). The device can be easily screwed to the wall with the two screws provided or placed on a stable, flat surface.
Important warning: If the alarm sounds, immediately open all windows and doors to ventilate the area, leave the building immediately and call the fire department or gas company. Do not re-enter the premises until the relevant authorities confirm that the environment is completely safe.
Frequently Asked Questions (FAQ)
Where is the best place to install a carbon monoxide detector?
The detector is best placed in rooms where you sleep or spend the most time (e.g. bedroom, living room), as well as near heating appliances (water heaters, fireplaces, gas stoves). It is recommended that it be installed at eye level or on a wall at a height prescribed by general safety instructions for CO detection.
How often should the batteries in the detector be changed?
The device operates on 3x AA batteries, which have a lifespan of up to 2 years. The detector has a built-in low battery warning function - when the batteries are almost empty, the device will warn you in time with a clear sound and light signal.
How do I know if my carbon monoxide detector is still working properly?
The detector is equipped with a convenient "TEST" button. By pressing this button, you can manually check the operation of the audible alarm and LED indicators at any time. We recommend that you perform the test at least once a month. The sensor itself in the device has a lifespan of up to 10 years, after which the entire device must be replaced.


Responsible persons:
REBEL-TOOLS - Lechpol Electronics Leszek Sp.k. St. Garwolińska 1, 08-400 Kovnica, Poland, maciej@lechpol.pl +48 665 014 014

Distributor for Slovenia: Haloorodje.si, Online Sales, Rok Groznik sp, Podturn 42, 8350 Dolenjske Toplice, info@haloorodje.si, +38669731944, Slovenia
Product origin: China

Instructions for using the product:
• Installation location: Install the detector near sleeping areas and on each floor of the home. In rooms with heating appliances, install it on a wall, at floor-to-ceiling height (not right next to the ceiling) and away from ventilation openings.
• Batteries: Insert the batteries according to the polarity and press the test button to check the operation.
• Installation: Mount the detector to the wall (usually with the screws provided).
• Maintenance: Test the alarm regularly (e.g. once a month) using the test button. Replace the batteries when prompted by the yellow LED/signal.

Useful tips:
• A carbon monoxide detector is not a substitute for a smoke detector, so you need both in your home.
• Do not paint the detector or obstruct its openings.

Warnings:
• The lifespan of a CO sensor is typically 10 years; after this time, the entire device must be replaced.
• Do not place the detector in close proximity to devices that produce CO, such as stoves or fireplaces, as this may cause false alarms.
• If the alarm sounds, ventilate the room immediately and locate the source of carbon monoxide. If you feel unwell, leave the building.

Same summary

This carbon monoxide detector is primarily intended for users who want simple and reliable home protection without additional devices or network connectivity. Due to its battery operation and standalone use, it is suitable for people looking for basic security or protection in spaces where there is no smart home or the need for applications. It is also suitable for weekends and spaces where there is no internet access or where complex integration would be an obstacle. Please note that the device is not intended to detect other gases or smoke and does not allow connection to smart remote control systems.

Recommendation source: Enaa guides and team experiences.

User view

Typical users of this detector are individuals or families who want to increase the security of their home, holiday home or rental premises, but do not have special smart home systems. In practice, it comes in handy wherever there is a possibility of carbon monoxide formation, for example near heating appliances, fireplaces or gas stoves. The advantage is that it can be used independently, as no additional control panel or connection to a smartphone is required.

When choosing such devices, users often swear by the proven quality and ease of use of Rebel-Tools products, as they are known for their reliability for basic security solutions.

Why buy at Enaa

At Enaa, you can choose from a wide range of home detectors and sensors, and the product descriptions are designed to make comparisons easier and decisions faster. In addition, when purchasing, you can count on an up-to-date range of products from renowned manufacturers and a clear presentation of their functionalities.

Answers to frequently asked questions

Does the detector work without a control panel or additional devices?

Yes, the detector is standalone and does not require a control panel, WiFi network or other devices to operate - it is suitable for immediate use in various rooms.

Where is it recommended to install a carbon monoxide detector?

It is recommended to install the detector near sources of carbon monoxide, such as fireplaces, gas stoves or fireplaces, in any room where the risk of this gas being produced is increased.

Is the detector suitable for use in a weekend or holiday home?

Yes, due to its battery operation and independence from the internet, the detector is also suitable for use on weekends or in areas without constant electricity.

How do I know when to replace the batteries in the detector?

The detector usually warns of a low battery with a flashing LED or a special sound signal, so it is important to monitor these warnings and replace the batteries in a timely manner.

Does the device also detect smoke or other gases besides carbon monoxide?

No, this model is specifically designed to detect carbon monoxide only and does not detect smoke or other gases.

Description updated: April 2026