1. Introduction
Thank you for choosing the Gedsffati HD13 4-in-1 Carbon Monoxide and Combustible Gas Detector. This device is designed to enhance the safety of your home or workspace by continuously monitoring for dangerous levels of carbon monoxide (CO) and combustible gases, while also providing real-time temperature and humidity readings. Please read this manual thoroughly before installation and use to ensure proper operation and safety.
2. Product Overview
The Gedsffati HD13 is a versatile plug-in safety device featuring a high-definition display and an integrated 1000mAh backup battery. It combines four essential functions:
- Carbon Monoxide (CO) Detection: Alerts to the presence of this odorless, colorless, and highly toxic gas.
- Combustible Gas Detection: Identifies leaks of natural gas, propane, and other flammable gases.
- Temperature Monitoring: Displays ambient temperature.
- Humidity Monitoring: Displays ambient humidity levels.
The device is designed for easy plug-and-play installation and provides both visual and audible alarms.

Image 1: The Gedsffati HD13 4-in-1 Carbon Monoxide and Combustible Gas Detector, showing its main unit and the plug adapter.

Image 2: Front view of the Gedsffati HD13 detector, highlighting its real-time monitoring capabilities for carbon monoxide, combustible gas, temperature, and humidity on its high-definition screen.
3. Safety Information
Please adhere to the following safety guidelines to prevent injury or damage to the device:
- This device is intended for indoor use only. Do not expose it to direct sunlight, high humidity, or extreme temperatures.
- Do not paint the detector. Paint can clog the sensor openings and interfere with the unit's ability to detect CO and gas.
- Do not block the ventilation openings on the device.
- Regularly test the detector as described in the Maintenance section.
- In case of an alarm, follow the instructions in the Alarm Conditions section immediately.
- The device has a service life of approximately 5 years. Replace the unit after this period.
4. Package Contents
- Gedsffati HD13 4-in-1 Carbon Monoxide and Combustible Gas Detector
- User Manual (this document)
5. Setup
5.1 Initial Placement
The Gedsffati HD13 is designed for plug-in operation. Select a standard 110V to 220V AC outlet in a location where gas leaks or CO accumulation are most likely, such as near gas appliances (stoves, water heaters, furnaces) or in living areas. Avoid placing the detector:
- Directly above a sink or stove.
- Near doors, windows, or ventilation openings where drafts could affect readings.
- In areas with high dust, dirt, or grease.
- In direct sunlight or areas subject to extreme temperature changes.
- Behind curtains or furniture that could obstruct the sensors.
5.2 Powering On
Simply plug the detector into a compatible wall outlet. The device will automatically power on and begin its self-test sequence. The built-in 1000mAh lithium-ion battery will charge automatically when plugged in, providing backup power for 10-14 hours during power outages.

Image 3: The Gedsffati HD13 detector emphasizing its 1000mAh high-capacity battery, providing long-lasting endurance and backup power.
5.3 Screen Orientation and Settings
The HD display can be rotated in 90, 180, or 270-degree increments to match the orientation of your wall outlet. Refer to the device's physical buttons or on-screen menu (if available) for adjustment. You can also adjust the screen brightness (high, low, or off) and switch temperature units between Fahrenheit and Celsius.

Image 4: A collage showing the Gedsffati HD13 detector in various suitable locations such as a kitchen, living room, bedroom, office, and RV, illustrating its wide applicability.
6. Operating Instructions
6.1 Real-time Monitoring
Once plugged in and initialized, the detector continuously monitors the environment. The HD screen dynamically displays real-time data.
6.2 Display Information
The screen provides the following information:
- CO ppm: Current carbon monoxide concentration in parts per million.
- GAS: Indication of combustible gas presence.
- Temperature: Ambient temperature reading.
- Humidity: Ambient humidity percentage.
- Battery Indicator: Shows the charge level of the backup battery.
- Warning Symbol: Appears during alarm conditions.
- Speaker Icon: Indicates alarm sound status.

Image 5: A detailed view of the Gedsffati HD13's Ultra HD color screen, showcasing its clear display of CO levels, gas detection, temperature, and humidity with large, easy-to-read symbols.
7. Alarm Conditions
The detector will emit an 85 dB audible alarm and display a warning symbol when CO or combustible gas concentrations exceed predefined safety thresholds (EN50291 and EN50194 standards).

Image 6: The Gedsffati HD13 detector indicating an alarm condition with sound and light, demonstrating its function to prevent danger through real-time monitoring.
7.1 What to do if the CO Alarm Sounds:
- Immediately move to fresh air outdoors or open all doors and windows to ventilate the area.
- Do a head count to check that all persons are accounted for.
- Do not re-enter the premises until the alarm has stopped and the area has been thoroughly ventilated.
- Call your emergency services or a qualified technician to investigate the source of the CO.
7.2 What to do if the Combustible Gas Alarm Sounds:
- Immediately open all windows and doors to ventilate the area.
- Turn off all gas appliances and the main gas supply if safe to do so.
- Do not use electrical switches, telephones, or any device that could create a spark.
- Evacuate the premises and call your gas supplier or emergency services from a safe location.
8. Maintenance
8.1 Regular Testing
It is recommended to test the detector monthly. Press and hold the test button (if available, otherwise refer to the manual for specific testing procedures) to ensure the alarm sounds and the unit is functioning correctly.
8.2 Cleaning
Clean the exterior of the detector regularly with a soft, damp cloth. Do not use cleaning agents, solvents, or abrasive materials. Ensure the sensor openings are free from dust and debris.
8.3 End of Life
The detector has a service life of approximately 5 years. After this period, the sensors may become less accurate. It is crucial to replace the unit to maintain optimal safety.
9. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Detector does not power on. | No power from outlet; unit faulty. | Check the power outlet with another device. If still no power, contact customer support. |
| Alarm sounds intermittently without apparent gas/CO. | False alarm due to strong odors, aerosols, or high humidity; sensor malfunction. | Ventilate the area. Relocate the detector away from sources of strong odors or high humidity. If persistent, contact customer support. |
| Screen display is dim or off. | Brightness setting is low or off; power saving mode. | Adjust screen brightness settings. The screen may turn off in battery mode to conserve power, but the sensor remains active. |
| Battery indicator is low. | Backup battery needs charging. | Ensure the detector is plugged into a live AC outlet to charge the internal battery. |
10. Specifications
- Model: HD13
- Dimensions: 8.7 x 8.7 x 2.5 cm
- Weight: 90 g
- Power Source: AC/DC (Plug-in 110V-220V AC)
- Backup Battery: 1000mAh Lithium-metal (included)
- Alarm Loudness: 85 dB
- Sensor Type: High precision electrochemical sensor
- Operating Temperature: (Not specified, assume typical indoor range)
- Operating Humidity: (Not specified, assume typical indoor range)
- Service Life: 5 years
- Standards: EN50291, EN50194
- UPC: 747086495749

Image 7: An exploded view illustrating the internal components of the Gedsffati HD13, highlighting its high-precision electrochemical sensor for sensitive and stable detection performance.
11. Disposal Information
This product contains electronic components and a lithium-metal battery. Do not dispose of it with general household waste. Please dispose of the device according to local regulations for electronic waste and batteries. Contact your local authorities for information on recycling and disposal options.





