Products related to Concentration:
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Handheld Combustible Gases Leak Detector Natural Gases Concentration Analyzer with Sound Light Alarm Function
Features: Compact Size: Portable gases detector, compact ABS body, fallproof and dustproof, quick response, detect leaks quickly. High Precise Sensors: Using quality gases-sensitive semiconductor sensor, with fast response and react very quickly, support more accurate measurement. LCD Display with Backlight: 1.1inch color LCD display with backlight, with clear definition, you can see the data clearly. It can automatically matching the appropriate color backlight and change concentration simulation bar according to the measured concentration, and with green and red backlight for more intuitive displays. Easy to Use: Convenient for users to safely detect and test a variety of combustible gases types, easyto meet different test needs. Measurable Gases Types (partial list): Can detect a variety of gases, methane, natural gases, ethanol, gases, propane, benzene, ethylene oxide, hexane, n-butane, acetylene. Sensitivity Adjustable: High and low sensitivity adjustable, you can first choose high sensitivity to sense the general ranges, and then choose low sensitivity to accurately determine the air leakage point. SoundLight Alarm: Sound and light prompts, when detecting combustible gases sink leakage, the meter beeps, the backlight will turn to red, and the concentration simulation bar increases. Multifunctional Design: With low battery indicator, data hold, automatic shutoff, on/off test, and auto CLR clear function. Wide Applications: Suitable for water heating device detection, gases pipeline detection, industrial waste gases detection, gases pipeline detection, oil station operation, gases leak detection, etc.
Price: 11.3 £ | Shipping*: 0.00 £ -
HABOTEST HT66 Mini Gas Detector Household Handheld Combustible Gas Detecting Gauge with Long Probe Gas Leak Monitor Tester PPM Meter Methane Concentration Alarm Instrument
Features: Compact Structure Super Light Weight: portable to use and store, providing you a better using experience. High Precision Fast Response: adopts gas-sensitive semi-conductor sensor for fast detecting and has wide reaction range(50~1000ppm). 6.6-inch Long Probe: the long probe allows you to freely detecting in a narrow place. Visible Audible Dual-way Alarm: when combustible gas leakage is detected, the buzzer will sound and the concentration indicator will be on. Low Power Consumption: powered by 2pcs AAA batteries (NOT included), with low battery indication, long standby and easy for replacement. Auto Power Off: when no concentration is measured within 5 minutes, the meter will automatic shutdown. One button to power on-off manually.
Price: 22.0 £ | Shipping*: 0.00 £ -
HABOTEST Portable Gas Analyzer HT601B Household Gas Leak Detector Gases Detector PPM Meter Methane Concentration Alarm Instrument
Features: Compact structure and light weight, portable to use and store, providing you a better using experience. Adopts high precision sensor for fast response (2 second) and accuracy detection (10%F.S.). High-definition LCD display for clear and easy reading, HT601B supports digital bargraph display and HT601A supports bargraph display. Dual-way alarm including sound alarm and bargraph alarm for timely feedback on the results. Powered by 3 * AAA battery (NOT included), with low battery indication, long standby and easy for replacement. Gas detected (partial listing): Acetone, Acetylene, Alcohol, Ammonia, Benzene, Butane, Ethanol, Ethylene, Oxide, Gasoline, Hexane, Hydrogen, Methane, Naphtha, Natural Gas, Paint Thinners, Propane, Solvents, etc.
Price: 61.61 £ | Shipping*: 0.00 £ -
Tuya WiFi CO Combustible Gases Leak Detector Portable Carbon Monoxide Gases Leakage Tester Multifunctional Gases Concentration Tester
Features: 【Comprehensive Detection】: The intelligent multi-function alarm is designed for home safety, capable of real-time leak detection of carbon monoxides, natural gases, methanes, liquefied petroleum gases, coal gases, methanes, and other harmful gases, all-around guarding the safety of the home environment. 【Instant and Efficient Alarm】: Equipped with high sensitivity sensor, it can trigger a sound and light alarm the first time of gases leakage, emitting up to 80 decibels high decibel alarm, red light flashing and continuous alarm, and push to APP remote real-time notification to ensure that even if you are not at home, you will be immediately informed of the risky situation, and the alarm will be canceled when the concentration of the gases drops to a safelevel. 【Intuitive Display and Intelligent Networking】: The alarm uses a digital display to clearly show the current gases concentration, allowing users to grasp the environmental conditions at a glance. The status of the device is visualized by multi-color indicators, green to indicate warm-up, blue to indicate networking, and red to indicate alarm status. Meanwhile, it supports intelligent networking functions, which are convenient for remote monitoring and linkage operation. 【Convenient Installation】: Built with ABS flameretardant material to ensure the product is safer and more reliable, the USB Type-C power supplying design makes the installation of the alarm more convenient and faster. Capable of handling a variety of detection environments, making it a practical tool for many situations. 【Widely Used Scenarios】: The intelligent alarm is perfect for kitchens, bathrooms, living rooms, and other closed or poor air mobility spaces. Its diverse application scenarios provide a comprehensive home gases safety solution for various environments such as homes, apartments, and offices.
Price: 23.39 £ | Shipping*: 0.00 £
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How long do you have to own stocks to receive dividends?
To receive dividends, you typically need to own the stocks before the ex-dividend date. This means you need to own the stocks at least one business day before the record date, which is the date set by the company to determine which shareholders are eligible to receive dividends. The exact timing can vary depending on the company and the specific dividend payment schedule.
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Why are concentration camps actually called concentration camps?
Concentration camps are called so because they concentrate a large number of people in a confined area, often under harsh conditions. The term "concentration" refers to the act of bringing together or focusing a specific group of individuals in one place. These camps were historically used to detain and oppress specific groups of people, such as political dissidents, minorities, or prisoners of war, with the goal of controlling and monitoring them closely.
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How does the enzyme concentration affect the substrate concentration?
The enzyme concentration directly affects the rate of reaction by increasing the likelihood of collisions between the enzyme and substrate molecules. As the enzyme concentration increases, there are more active sites available to bind with the substrate molecules, leading to a faster rate of reaction. However, once all the active sites are occupied, further increases in enzyme concentration will not have a significant effect on the rate of reaction unless the substrate concentration is also increased. Therefore, the enzyme concentration and substrate concentration both play a crucial role in determining the rate of reaction.
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What is the difference between concentration and ion concentration?
Concentration refers to the amount of a substance present in a given volume of solution, typically measured in moles per liter (M). It can refer to the amount of any substance, such as a solute or a solvent, in a solution. On the other hand, ion concentration specifically refers to the amount of ions present in a solution. This can be the concentration of a specific type of ion, such as the concentration of hydrogen ions (H+) in a solution. Therefore, while concentration is a more general term that can refer to any substance, ion concentration specifically refers to the amount of ions in a solution.
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A4 Term Time Dividers
Easy retrieval of curriculum material. Reinforced europunched 11 holes.180gsm board.6 partA4.
Price: 12.03 £ | Shipping*: 7.19 £ -
Handheld Carbon Monoxide Detector Portable Carbonic Oxide Concentration Testing Meter with Temperature Test and Sound Light Alarm Function
Features: High Precise Sensor: Adopts high precise electrochemical sensor, quick response, high accurate measurement, with the measurement ranges of 0-1000ppm. Digital LCD Display: High bright screen with backlight, the carbon monoxide concentration, temperature, and power can be seen at a glance. The backlight color will switch according to the detection situation, and Fahrenheit / Celsius can be switched. Sound Light Alarm: Two alarm levels (high and low alarm) design, when the concentration is lower than the low alarm value, a low slow beeping sound and motor vibrations alarm will be issued; when the concentration is higher than the high alarm value, a fierce beeping sound, motor vibrations alarm will be issued and the backlight of display turns to red for warning. Parameter Setting: Support auto power off (APO) setting, low limit alarm (LAL) setting, and high limit alarm (HAL) setting. Auto shutdown time default 10 minutes(can be set closed). Alarm value setting ranges of 0-1000ppm. Wide Applications: It can detect a variety of gases, such as natural gases, gases, liquefied gases, fuel oil, coal, etc. incomplete combustion to produce carbon monoxide concentration detection. Application Scenario: Suitable for evaporate heating room, garage confined space, gases water heating device, gases for cooking, etc.
Price: 20.73 £ | Shipping*: 0.00 £ -
Handheld Combustible Gases Leak Detector Natural Gases Leakage Tester Portable Combustible Gases Concentration Analyzer Meter with Sound Light Alarm Function
Features: Compact Size: Portable gases detector, compact ABS body, fallproof and dustproof, quick response, detect leaks quickly, easy to carry and use. High Precise Semiconductor Sensors: Using high-precise semiconductor sensor, with fast response and react very quickly, support more accurate measurement. LCD Display: Color LCD display, suitable for clear and visible data reading in low light at night. With concentration bar display function, it can automatically matching the appropriate color of light according to the measured concentration. Easy to Use: Concentration gases tester+thermohygrometer dual-mode switching, convenient for users to safely detect temperature and humidity, and test a variety of combustible gases types, easy to meet different test needs. Measurable Gases Types (partial list): Can detect a variety of gases, propane, ammonia, benzene, gasoline, hydrogen, naphtha natural gases, paint thinner, carbon monoxide, methane, ethylene oxide, butane, ethanol, ethylene, propylene, butene, acetylene, propyne, butyne, hydrogen sulfide, phosphine, etc. Multifunction Design: With automatic calibration, high and low sensitivity adjustment, manual zeroing, and ℃/℉ temperature units switching functions. SoundLight Alarm: Sound and light dual prompts, when detecting combustible gases sink leakage, the meter beeps and the concentration bar will increased. Four Models Optional: There are four models available, you can choose from ZL72A (Battery), ZL73A (Battery), ZL72B (Charging), ZL73B (Charging), to meet your different needs. Extended Flexible Probe (Only FOR ZL73A and ZL73B): Universal flexible probe with protective sleeve, retractable and wear-resistant, 180 adjustable, easily cope with a variety of detection environments. Flashlight Function (Only FOR ZL73A and ZL73B): Equipped with an LED flashlight for illumination, easy to cope with various working environments, easy to use at night. Wide Applications: Suitable for water heating device detection, gases pipeline detection, industrial waste gases detection, gases pipeline detection, oil station operation, gases leak detection, etc.
Price: 14.41 £ | Shipping*: 0.00 £ -
Tuya Wifi Gases Leakage Detection Device Live Voice Prompt APP Remote Alarm with Concentration Display USB Power Supplys High Decible Alarm
Features: Concentration Display: Digital display design, you can see the gases concentration clearly at a glance. High Sensitive Detection: Detect changes in temperature, when the temperature exceeds the set value, the device will trigger a high-pitched alarm. Can Detect A Variety Of Gases: In addition to natural gases detection, can also detect methane, biogas detection. Breakdown Self Check: Alarm fault self-test function design, real-time automatic detection of fault, the fault indicating lamp will light up. Human Voice Alerts: Built-in 6 paragraphs of voice operation prompts, such as device in self-checking, please wait, Wifi connected. And with one button muffling sound function. 3-color Indicator Light: Green light indicates normal detection, the yellow light indicates out of order, and red light indicates leak alarm. Tuya Wifi Cellphone APP Control: APP remotely control, after correctly connecting to the Tuya APP, you can achieve remotes control it wherever you are.
Price: 13.25 £ | Shipping*: 0.00 £
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Is bacterial growth inhibited by too high a concentration of sugar?
Yes, bacterial growth can be inhibited by too high a concentration of sugar. High concentrations of sugar can create a hypertonic environment, causing water to leave the bacterial cells through osmosis, leading to dehydration and ultimately inhibiting their growth. Additionally, high sugar concentrations can lower the pH of the environment, creating an acidic condition that can also inhibit bacterial growth. Overall, excessive sugar can have a detrimental effect on bacterial growth.
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What is the difference between mass concentration and molar concentration?
Mass concentration refers to the amount of solute present in a given volume of solution, typically expressed in units such as grams per liter. On the other hand, molar concentration, also known as molarity, refers to the number of moles of solute present in a given volume of solution, typically expressed in units of moles per liter. In other words, mass concentration is based on the mass of the solute, while molar concentration is based on the number of moles of the solute.
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What is the difference between molar concentration and mass concentration?
Molar concentration is a measure of the amount of a substance in a given volume of solution, expressed in moles per liter (mol/L). Mass concentration, on the other hand, is a measure of the amount of a substance in a given volume of solution, expressed in grams per liter (g/L). Molar concentration takes into account the molecular weight of the substance, while mass concentration simply considers the mass of the substance present in the solution.
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Which concentration camps existed?
Concentration camps existed in various locations during World War II, primarily in Nazi-occupied Europe. Some of the most notorious concentration camps included Auschwitz, Dachau, Buchenwald, and Treblinka. These camps were used by the Nazis to imprison, torture, and exterminate millions of people, primarily Jews, as well as other targeted groups such as Romani people, homosexuals, and political dissidents. The horrors of these camps have left a lasting impact on history and serve as a reminder of the atrocities committed during the Holocaust.
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