Gas Sensor

What you need

• A PIERRE display and/or gateway for the PIERRE Wave (Zigbee 3.0, 2.4 GHz) network.
• A permanently powered mains socket for the USB cable and power adapter. The sensor is not battery powered.

1. Install the device indoors, in areas where combustible gases (e.g., methane) may be present.
2. Do not install the device outdoors.
3. Ensure the installation environment temperature is between 0 °C and +55 °C.
4. Do not place the device in areas exposed to heat, steam, or smoke from gas appliances (e.g., above a gas stove).
5. Make sure there are no obstacles between the device and the gas source, as this may prevent proper gas detection.
6. Avoid installing the device in areas with strong airflow, such as near air vents, ventilators, windows, or doors.
7. Verify that the device is securely connected to a powered socket.
8. It is recommended to install the device with screws. If using a 3M adhesive sticker, ensure the surface is smooth, dry, and clean.
9. Regularly check that the device is firmly attached to the surface to prevent it from falling.

1. Preheating Mode

When powered on, the device enters preheating mode.

During this stage, the yellow status indicator will flash. Preheating takes no longer than 3 minutes. Once complete, the indicator will turn solid green, showing the device is ready for use.

2. Normal Operation

When the device is functioning correctly, the status indicator will remain solid green, and no alarm sound will be heard.

3. Alarm Mode

If the device is working properly but the gas concentration exceeds the preset alarm threshold, the red indicator will flash and the buzzer will sound an audible alarm.

4. Fault Status

If the detector encounters a fault, the yellow LED will flash and the buzzer will beep every 6–10 seconds.

5. Simulation Test

To run a self-check, short-press the button on the front (see Product Description) while the device is operating. This will activate simulation test mode.

In this mode, the device will send a wireless alarm signal. Once the test is complete, it will automatically transmit a wireless alarm clearance signal.

To ensure reliable performance, the product should be maintained and protected as follows:

1. Installation and Operation: Install, operate, and maintain the product strictly according to the user manual.
2. Monthly Self-Diagnostic Test: Perform a self-test once a month. While the product is operating, press the mute/self-diagnostic button to confirm that both the audible alarm and the visual indicator are functioning correctly.
3. Quarterly Cleaning: Every three months, clean the product cover and air intake vent with a slightly damp, lint-free cloth to remove dust and oil residues. This helps maintain proper airflow and ensures normal alarm function.
4. Important: Do not use wet towels, alcohol, acetone, or any other chemical solvents when cleaning the device.
5. Annual Calibration: The product must be calibrated once a year.

Note: Calibration should only be performed by qualified institutions using standard gas and certified calibration tools.

If the concentration of combustible gas in the air reaches or exceeds the preset alarm threshold, the device will activate an alarm. In the event of a gas leak, follow these safety steps immediately:

1. Shut Off the Gas Supply: Close the main gas pipeline valve without delay.
2. Ventilate the Area: Open all doors and windows to allow fresh air circulation.
3. Eliminate Ignition Sources: Extinguish all open flames, such as cigarette lighters, matches, and gas burners. Do not operate or use any items that could generate sparks or flames, including electronic ignition devices, water heaters, or gas appliances.
4. Avoid Electrical Appliances: Do not switch any household appliances on or off, as this may create sparks.
5. Seek Professional Assistance: Identify the cause of the gas leak and contact the appropriate authorities or certified professionals to handle and resolve the issue safely.

1. This product is designed exclusively for pipeline methane (natural gas) and must not be used with bottled liquefied gas (LPG).
2. Do not alter or modify the internal structure of the product.
3. Avoid exposing the detector to high-concentration combustible gases, such as butane lighter gas or pure natural gas. Such exposure may reduce sensitivity or render the detector non-functional.
4. Keep the product away from large amounts of hairspray, pesticides, paint, adhesives, or thinners, as these substances can cause false alarms and shorten the product’s lifespan.
5. The built-in sensor typically has a lifespan of five years. After this period, either maintain the sensor or replace the product to ensure reliable performance.
6. Periodically check that the product is operating correctly. If a fault is detected, contact the vendor and provide details of the issue. Do not attempt to disassemble or repair the product yourself. Only authorized service engineers should carry out repairs, and gas safety must be ensured throughout the repair process.
7. If attaching the product to a painted surface using a 3M sticker, be aware that paint peeling may cause the product to fall.