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Henan Weiguo Intelligent Technology Co., Ltd. established in 2017, is an innovative technology company in China and is the pillar enterprise of the healthy home business division of Hanwei Electronics (stock number: 300007). Focusing on the complete chain of design, R& D, production and sales of smoke alarm, gas alarm, air quality monitor and alcohol tester, we strive to supply air health service for the human beings in the world.
Using a breath alcohol tester, commonly known as a breathalyzer, is a straightforward process. These devices are designed to measure the concentration of alcohol in a person’s breath and provide an estimate of their blood alcohol content (BAC). Here’s a general guide on how to use a breathalyzer: Read the Instructions: Always start by carefully reading the manufacturer’s instructions that come with the device. Different breathalyzers may have specific requirements and calibration procedures, so it’s essential to follow the provided guidelines. Prepare the Device: Ensure that the breathalyzer is clean and free from any obstructions. Some devices may require a warm-up time before use, so check the instructions for any specific pre-testing procedures. Insert Mouthpiece: If your breathalyzer uses disposable mouthpieces, insert a new, clean one into the device. The mouthpiece helps in capturing a controlled breath sample. Turn On the Breathalyzer: Power on the device according to the manufacturer’s instructions. This often involves pressing a button or flipping a switch. Wait for the device to complete any initialization or warm-up process. Take a Breath Sample: Follow the instructions on how to blow into the breathalyzer. It typically involves blowing steadily and forcefully into the mouthpiece for a few...
We usually see that the measurement scope of the combustible alarms (gas detector), including the natural gas alarm and liquid gas alarm, ranges from 0 to 100% LEL. Then, what does 0~100% LEL mean? When the combustible gas concentration in the air reaches the LEL, it means that the explosion danger of the combustible gas environment is 100%, or 100% LEL. If the combustible gas content can reach 10% of the LEL, we can regard the explosion danger of the combustible environment to be 10% LEL. When the combustible gas in the environment is monitored, the danger degree of the combustible environment is directly given, which can be denoted by the content of combustible gas in the air and its LEL percentage (% LEL). Therefore, monitoring is sometimes known as “gas-free inspection.” The monitoring instrument used is known as the “gas-free inspector.” The higher concentration of the combustible gas exploding in the air encountering open fire is known as the upper explosive limit or UEL. The explosive limit is a measure of the explosion danger of combustible gases, which is very important to settings of the gas alarm. As a very important concept, explosive limit holds vital significance...
The VMLD700II+VRLD200 Vehicle-mounted laser methane detector instrument (pump suction type) Laser detection technology: fast response, no delay Good selectivity: only reacts to methane, effectively avoiding interference from other gases such as car exhaust Visualized data display: real-time display of concentration curves and line patrol trajectories through a tablet computer, and the trajectories can be integrated with pipe network GIS Using optical absorption method to remotely detect gas leaks without contact It can detect places that are inaccessible to people on both sides of the road to prevent hidden dangers caused by missed detections. Fast line patrol speed: up to 50 km/h Built-in high-definition camera, you can see the clear measurement picture in real time. Together with the pan/tilt and joystick, it is convenient for scanning, detection and quick positioning voice broadcast.
In recent years, the widespread adoption of portable gas detectors has ushered in a new era of safety across various industries. These compact and highly efficient devices are proving instrumental in safeguarding lives and preventing potential disasters. Portable gas detectors have become indispensable tools in sectors ranging from manufacturing and mining to emergency response and environmental monitoring. Their compact design and advanced sensor technologies enable real-time detection of harmful gases, allowing for swift and precise responses to potential threats. One of the key advantages of these devices is their ability to detect a wide range of gases, including toxic and flammable substances. This versatility makes them crucial in environments where the presence of hazardous gases poses a constant risk. Industries such as petrochemicals, where volatile substances are commonplace, have embraced portable gas detectors as a frontline defense against potential accidents. Emergency responders and firefighters also benefit significantly from the portability and sensitivity of these detectors. Rapid and accurate identification of gas leaks or dangerous atmospheres ensures that first responders can take immediate action to protect themselves and the public. This has led to a substantial reduction in the number of casualties and improved overall response efficiency in emergency situations. Environmental...
In a significant stride towards advancing environmental monitoring technology, a groundbreaking handheld laser methane detector has been introduced, promising a new era in portable gas detection solutions. The cutting-edge device, developed by a team of innovative engineers and scientists, aims to revolutionize the way methane emissions are monitored across various industries. Methane, a potent greenhouse gas, is a major contributor to climate change. The newly unveiled handheld detector offers a portable and efficient solution to swiftly identify and measure methane concentrations in diverse environments. This device is expected to play a pivotal role in enhancing safety protocols, environmental protection efforts, and regulatory compliance across sectors such as energy, agriculture, and waste management. Key Features of the Handheld Laser Methane Detector: Precision Sensing Technology: The detector incorporates state-of-the-art precision sensing technology, utilizing a laser-based system for accurate and real-time methane detection. Portability and Ease of Use: Weighing just a few pounds and ergonomically designed, the handheld detector is user-friendly and easily transportable, allowing for quick deployment in the field. Wireless Connectivity: Equipped with wireless connectivity options, the device enables seamless data transmission to centralized monitoring systems, facilitating remote analysis and decision-making. Robust Durability: Built to withstand harsh environmental conditions, the detector...
Carbon monoxide is the most commonly-seen toxic gas in daily life and work. As a color-less, odor-less gas without a pungent gas, CO, if whose concentration exceeds the upper limit, might cause poisoning. If the poisoning is not serious, you might have symptoms such as headache, dizziness, palpitation, weakness of limbs, nausea, etc. If the poisoning is serious, you might suffer loss of your consciousness, or fall into a deep coma or even become in a persistent vegetative state. More seriously, CO poisoning might cause death. Therefore, when CO appears, we need the carbon monoxide gas detector, a simple gas detector specially designed for detection of CO and an indispensable instrument in our life. When the CO concentration reaches the alarm level, the gas detector might raise a sound-light alarm, and we should immediately adopt measures to avoid occurrence of fire disasters, explosions, poisoning and other malicious events. With the passage of time and expiration of the instrument’s service life, the performance will inevitably decline. Thus, daily maintenance can help lengthen the service life of corbon monoxide gas detector. Periodical inspection of the CO gas detector: Since harsh environmental conditions and long-term use can cause damage of...
It is suggested that the carbon monoxide gas detector should be installed in the garage, kitchen or furnace. To install the gas detector in these places might cause a disgusting alarm, or expose the instrument in materials which might damage or pollute the sensing probe. Or a person might hear the alarm in other parts of a house. There is some CO in the garage or automobile. The CO concentration will be very high when the engine is started, thus triggering the alarm. The high-concentration CO might be generated in the kitchen, furnace, and some gas appliances. This is quite normal. If you put the alarm to close to gas appliances, the alarm triggered might be a kind of noise. If you must put the gas detector close to the kitchen or heating devices, you should put the alarm apart from these items at certain distance. Do not install the alarm in places, which are dirty, dusty or oily, such as the kitchen, garage and house. The oily, dusty materials or chemicals for home use might pollute the sensing probe of the alarm, disabling the alarm to work normally. Do not block the ventilation port of the alarm....
Coin-operated Breath Alcohol Tester with 7’’ display, is designed to measure alcohol concentration in the human body. With advanced fuel cell alcohol sensor, this device has excellent sensitivity. Reasonable and easy testing process, complete function makes it versatile in many occasions.
The main purpose of Home monitoring technology is to help the elderly live independently and safely in their own home for as long as possible. Sensors passively monitor the activity of your parents or elderly relative in their own home, establish behaviour patterns and if there’s anything out of the normal, raise an alarm.
In recent developments, a methane leak has been reported, raising concerns about its potential consequences on the environment. Methane（CH4）, a potent greenhouse gas, is notorious for its role in climate change. The leak, if not promptly addressed, could exacerbate the already critical environmental challenges we face. Experts warn that the release of methane into the atmosphere contributes significantly to global warming, with an impact over 25 times greater than that of carbon dioxide over a 100-year period. The consequences of such a leak are multi-faceted and could have far-reaching effects on both the climate and ecosystems. First and foremost, the increased concentration of methane in the atmosphere intensifies the greenhouse effect, trapping heat and leading to a rise in global temperatures. This warming, in turn, has cascading effects on weather patterns, sea levels, and overall climatic stability. Regions already grappling with extreme weather events may experience heightened frequency and severity. Furthermore, methane leakage poses a direct threat to air quality. The gas can displace oxygen, leading to potential health hazards for both humans and wildlife. Prolonged exposure to elevated methane levels can result in respiratory issues, cardiovascular problems, and other health complications. The impact on ecosystems is another critical concern....
When the oxygen content is analyzed and the oxygen content in the air reaches as high as 21%, samples can be easily polluted or disturbed because of proper handling, thus resulting in inaccuracy of analysis results. A main cause is improper operation of the oxygen detector. The following part summarizes several factors which might influence accuracy of detection. Simplification and cleanness of the oxygen detector’s gas circuit commutator The oxygen analysis requires effective eliminate of various pipelines on the gas circuit, which can prevent the dead corner of the pipelines from causing pollution to the sample air. Therefore, the gas circuit commutator should be simplified as much as possible, and the connection parts with small dead corners should be chosen. In order to avoid use of water sealing, oil sealing and wax sealing, and prevent escape of the dissolved oxygen from causing pollution, and the purification equipment which might deepen pollution should not be introduced to the oxygen detector’s inlet pipeline. On in this way can cleanness of the commutator and data accuracy be ensured. Selection of the pipeline materials If the pipeline materials and surface are coarse, it might easily influence changes of the oxygen content in the...
In recent years, the importance of carbon monoxide (CO) detectors in households has become increasingly evident. Carbon monoxide, often referred to as the “silent killer,” is a colorless, odorless gas that can be produced by faulty appliances, heating systems, and even vehicles in enclosed spaces. The necessity of having a carbon monoxide detector in every home cannot be overstated, as it plays a crucial role in safeguarding the well-being of families. Carbon monoxide poisoning is a serious and potentially fatal threat that can affect anyone, regardless of age or health. It is essential for individuals to understand the risks associated with CO exposure and take proactive measures to mitigate them. The installation of a carbon monoxide detector is a simple yet effective step towards creating a safer home environment. One of the key reasons for the necessity of carbon monoxide detectors is the insidious nature of the gas. Unlike other household hazards, carbon monoxide is virtually undetectable without specialized equipment. This makes it particularly dangerous, as individuals may not be aware of its presence until symptoms of poisoning appear. Early symptoms can mimic those of common illnesses, such as headaches, dizziness, and nausea, making it challenging to diagnose the issue...
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