Introducció
This manual provides essential information for the safe and effective use of your MOES 4-in-1 Gas & Carbon Monoxide Detector. This device is designed to monitor for carbon monoxide (CO) and combustible gases (LPG/Natural Gas), while also displaying real-time temperature and humidity. Please read this manual thoroughly before installation and operation.

Image: The MOES 4-in-1 Gas & Carbon Monoxide Detector in operation, illustrating its ability to detect both CO and combustible gases like LPG/Propane/CH4 from sources such as gas cooktops and fireplaces. The device displays CO levels, gas levels, temperature, and humidity.
Informació important de seguretat
Failure to follow these safety instructions may result in property damage, injury, or death. This detector is not a substitute for proper installation and maintenance of fuel-burning appliances, including appropriate ventilation systems.
- Ubicació de la instal·lació: Install the detector in areas where gas or CO leaks are most likely to occur, such as kitchens, boiler rooms, and near fuel-burning appliances. Avoid installing near windows, doors, or ventilation openings that could interfere with detection.
- Font d'alimentació: The device operates by plugging into a standard AC outlet. Ensure the outlet is functioning correctly and not controlled by a switch that could accidentally turn off power to the detector.
- Resposta d'alarma: If the alarm sounds, evacuate the premises immediately and contact emergency services or your gas provider. Do not re-enter until the area has been deemed safe by professionals.
- Prova: Test the alarm regularly as described in the "Operating Instructions" section to ensure proper functionality.
- Manteniment: Keep the detector clean and free from dust. Do not paint the device.
- Temperatura i humitat: While the device displays temperature and humidity, these readings are for informational purposes and should not be used for critical environmental control.
Producte acabatview
The MOES 4-in-1 detector combines multiple sensing capabilities into a single, compact plug-in unit. It features a clear display and intuitive controls.

Image: A comparison highlighting the 2-inch HD color screen display of the MOES detector, showing clear visibility of CO ppm, gas levels, temperature, and humidity, contrasted with less clear displays of other devices.

Imatge: Una imatge interna view of the detector, pointing out the Electrochemical Sensor for CO detection and the Catalytic Combustion Sensor for gas detection, emphasizing rapid response capabilities.
Components and Display

Image: A detailed diagram illustrating the various components and display elements of the MOES detector, including the CO unit (PPM), GAS sensitivity, temperature value, humidity value, CO indicator, screen brightness keys, alert icon, sound indicator, CO value, GAS level, and disassembling button. The diagram also shows the dimensions of the device (105mm/4.13in height, 52mm/2.05in width).
- Pantalla digital: Shows CO concentration (ppm), Gas concentration (%LEL), Temperature (°C/°F), and Humidity (%RH).
- Alert Icon: Visual indicator for different alert levels (Green, Yellow, Orange, Red).
- Indicador de so: Indica l'estat d'alarma.
- Botons de control: For self-test, temperature unit toggle, screen brightness, and sound control.
- Ventilació: Openings for air circulation to allow sensor operation.
- Disassembling Button: For plug replacement or maintenance.
Configuració i instal·lació
The MOES 4-in-1 detector is designed for simple plug-and-play installation.
- Desembalar: Traieu amb cura el detector del seu embalatge.
- Tria la ubicació: Select a suitable location for installation. Ideal locations include kitchens, utility rooms, near gas appliances, or areas where CO sources (e.g., fireplaces, furnaces) are present. Ensure the detector is plugged into a standard AC outlet that is not obstructed and is not controlled by a wall switch. Avoid placing it directly above heat sources, near windows, or in areas with high humidity (unless specifically for humidity monitoring).
- Connectar: Insert the detector directly into a standard electrical wall outlet. The device will power on automatically.
- Escalfament inicial: The detector may undergo an initial warm-up period upon first power-up. During this time, the display may show a countdown or specific indicators. Allow the device to complete this process before relying on its readings.

Image: Various usage scenarios demonstrating suitable placement for the detector, such as near a fireplace, in a kitchen, smoking areas, garage, near a gas water heater, or in an RV, to monitor for gas and CO.
Instruccions de funcionament
The detector provides continuous monitoring and features several user-controlled functions.
Mostra informació
The 2-inch HD color screen displays the following in real-time:
- CO PPM: Current Carbon Monoxide concentration in parts per million.
- GAS S1: Current Combustible Gas concentration, indicated by a level bar.
- Temperatura: Current ambient temperature in Celsius or Fahrenheit.
- Humitat: Humitat relativa actual percentatgetage.
Funcions del botó

Image: A detailed diagram illustrating the functions of the control buttons on the MOES detector, including temperature unit switching, self-test, screen brightness adjustment, screen inversion, and sound control.
- Temperature Unit Toggle: Long press the 'U' button to switch between Celsius (°C) and Fahrenheit (°F).
- Autocomprovació: Short press the 'U' button to initiate a self-test. The alarm will sound briefly to confirm functionality.
- Brillantor de la pantalla: The device has screen brightness keys. Pressing them cycles through three gears: 100% brightness (First Gear), 50% brightness (Second Gear), and 0% brightness (Third Gear, where the breathing light is also turned off).
- Screen Inversion (180° Flip): Long press the bell icon button to flip the screen display 180 degrees for flexible viewing depending on outlet orientation.
- Sound On/Off (Mute/Unmute): Short press the bell icon button to toggle the alarm sound on or off. Note: Muting the alarm should only be done temporarily during non-emergency situations, such as testing.
Alarm System Details
The detector features a dynamic 4-stage alert system for both CO and combustible gas, with visual and audible indicators.

Image: A flow chart illustrating the four levels of visual and audible alarms for the MOES detector, detailing CO and Gas concentration thresholds for Good, Attention, Warning, and Danger states.
| Nivell | Concentració de CO | Concentració de gasos | Indicador | Alarma sonora |
|---|---|---|---|---|
| Green (Safe) | < 50 ppm | < 5% LEL | Llum verda | Sense alarma |
| Yellow (Caution) | 51–100 ppm | 5-8% LEL | Parpelleja la llum groga | Slowly audible alarm |
| Orange (Warning) | 101–150 ppm | 8-15% LEL | Parpelleja la llum taronja | Alarma sonora |
| Red (Danger) | 150–999 ppm | >15% LEL | La llum vermella parpelleja | Fast audible alarm (85dB) |
The audible alarm intensifies in sound and frequency as gas or CO levels rise, providing a clear indication of increasing danger.
Manteniment
Regular maintenance ensures the longevity and accuracy of your detector.
- Proves periòdiques: Perform a self-test weekly by short pressing the 'U' button. The alarm should sound briefly.
- Neteja: Gently wipe the exterior of the detector with a soft, damp cloth. Do not use cleaning agents, solvents, or abrasive materials. Ensure the ventilation openings are clear of dust and debris.
- Evitar obstruccions: Ensure no objects block the detector's ventilation openings.
- No pintar: Painting the detector can clog the sensor openings and interfere with its ability to detect gas and CO.
- Vida útil del sensor: Gas and CO sensors have a limited lifespan. Refer to the product specifications or manufacturer's recommendations for replacement intervals.
Resolució de problemes
If you encounter issues with your MOES 4-in-1 detector, refer to the following common problems and solutions.
| Problema | Causa possible | Solució |
|---|---|---|
| Alarm sounds without apparent gas/CO leak. | False alarm due to cooking fumes, aerosols, or temporary high concentrations. Sensor malfunction. | Ventilate the area. If alarm persists, treat as a real emergency. If it's a recurring false alarm, relocate the detector or contact support. |
| El detector no s'encén. | No power to the outlet. Faulty outlet. Device malfunction. | Check if the outlet is live by plugging in another device. Try a different outlet. If still no power, contact support. |
| Display shows "Err" or other error code. | Sensor fault. Internal error. | Unplug the device for 30 seconds and plug it back in. If the error persists, contact customer support. |
| Les lectures de temperatura/humitat semblen inexactes. | Placement near heat/cold sources. Sensor calibration. | Ensure the detector is not placed in direct sunlight or near heating/cooling vents. These readings are for general information. |
| Alarm is too quiet or not sounding during self-test. | Speaker obstruction. Device malfunction. Sound muted. | Ensure the speaker is not blocked. Short press the bell icon button to unmute. If the issue persists, contact support. |
Especificacions
| Característica | Detall |
|---|---|
| Número de model | NA503F |
| Tipus de detecció | Carbon Monoxide (CO), Combustible Gas (LPG/Natural Gas) |
| Rang de detecció de CO | 0-999 ppm |
| Gas Detection Range | 0-20% LEL |
| Interval de visualització de temperatura | 14 °F–122 °F (-10 °C–50 °C) |
| Interval de visualització d'humitat | 0-95% HR |
| Potència de l'alarma | 85dB (at 1 meter) |
| Font d'alimentació | Endoll de CA |
| Pes de l'article | 3.42 unces (97 grams) |
| Dimensions del paquet | 4.21 x 2.4 x 2.13 polzades |
| Fabricant | WENZHOU NOVA NEW ENERGY CO.,LTD |
Garantia i Suport
MOES products are designed for reliability and performance. For specific warranty details, please refer to the warranty card included with your product or visit the official MOES weblloc.
- Garantia: This product typically comes with a limited manufacturer's warranty covering defects in materials and workmanship. The duration and terms of the warranty may vary.
- Suport tècnic: For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact MOES customer support.
- Informació de contacte: Refer to the product packaging or the official MOES weblloc web per obtenir les dades de contacte del servei d'atenció al client més actualitzades.





