Top 10 Best Nitrogen Dioxide Detector

Combustible Gas Leak DetectorThe TopTes PT199 is suitable for LPG, methane, ethane, propane, butane, natural gas, coal gas, gas fuel, liquefied natural gas, etc., and it will exactly pinpoint a leak, reducing the risk of gas explosion and keeping your family and property safe. Visual Audio Gas AlarmThe gas detector employs both visual alarm and audible alarm as fast as 0.5 seconds of detection. When the bar graph increases and the detector beeps, you know gas has been detected. The alarm increases with the amount of gas, and the LCD screen will turn red when the gas concentration is high. Batteries Included Easy to UseThe TopTes PT199 comes with 2x AAA Alkaline Batteries, so you will be able to set the detector up and have it ready as soon as you receive it. The system warm-up time is about 30 seconds. The low battery indicator will engage when battery voltage is below 2.4V. Automatic power off after 5 minutes without operation or gas detection. Compact DesignPocket-sized with a pen hook that allows you to carry it in your shirt pocket. The non-slip texture and material make it easy to hold. With included storage bag, the natural gas detector is also easy to store. It is a great tool for RV-ers, DIY-ers, homeowners with gas appliances, and so on. Saves you from paying hundreds of dollars in diagnostics or wasting gas in an undetected leak. What You Get1x PT199 Gas Leak Detector, 1x Storage Bag, 2x AAA Batteries, 1x User Manual. Combined with Amazon's excellent delivery service, we provide a 36-Month after-sale service and lifetime technical support. Please feel free to contact us if you have any questions or concerns.

Combustible Gas Leak Detector TOPTES PT177 is a useful little tool that helps every household who has gas appliances to quickly and easily pinpoint leakage of combustible gas including LPG, methane, ethane, propane, butane, natural gas, coal gas, gas fuel, liquefied natural gas, etc. It will save a ton of time and potentially reduce energy bills. Easy to Use, Visual Audible Alarm All you have to do is load the provided batteries, let PT177 gas detector finish its 30-second automatic calibration process, and then point near where you suspect the leak to be hold it a couple of centimeters away. PT177 detects gasses and alarms almost immediately within 0.5 to 3 seconds. Five red LEDs visual and 75dB audible alerts that increase with gas concentration. Compact Design Pocket-sized with a pocket clip that allows you to carry it in your shirt pocket. The included storage bag makes the natural gas detector easy to store. It is an excellent tool for RV-ers, DIY-ers, homeowners with gas appliances, etc. It's very convenient and perfect for regular safety checks. User-Friendly Features When the battery voltage is below 2.4V, the power indicator light will flash to remind you to replace the battery in time. If inactive for 5 minutes without operation or detecting gas, PT177 will automatically turn off. Detection range 50 to 1,000 ppm based on Methane. What You Get1x PT177 Gas Leak Detector, 1x Drawstring Carry Bag , 2x AAA Batteries, and 1x User Manual. Combined with Amazon's excellent delivery service, we provide a 36-Month after-sale service and lifetime technical support. Please feel free to contact us if you have any questions or concerns.

High Sensitive and Accurate MeasurementSingle NO2 gas monitor,Bulit-in high senstive sensor measurment range 020ppm with resolution 0.1ppm. HighLow alarm function with three alarm methodswhen gas concentration reach preset high or low alarm value, the meter will Sound, light alarm with vibration,meanwhile, highlow alarm value is adjustable based on your specific requirements. Digital LCD display with backlight functionHigh density digital LCD screen display real time gas concentation value, backlight function is suitable use for dark areascompact size and unique clip design, it is convenient for user to carry around. Durable power supplyBulit-in rechargable 3.7V 1800mAh Li-thion battery, can work continuously 12 hours with full chargeslightly vary with working condition. Strict and qualified certificateThis product compiled with following standard and regulation JJG693 JJG695 JJG915 and GB3836 series anti-explosion standard.

Easy Installation - simply plug-in to a standard, 120V outlet in your home. 9-volt battery backup provides protection during a power outage. Digital LED display shows the level of carbon monoxide the CO alarm is sensing or states GAS when explosive gas is present. 85-decibel alarm announces when carbon monoxide or explosive gas is detected. Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested. Test-Hush Button makes testing the detector or silencing false alarms easy. Extension cord included allows for placement on a table or shelf. UL Listed with a 10-year limited warranty which begins when the alarm is powered on, if that date is unknown it should be assumed the alarm should be replaced..

PROTECTS EVERY BREATH When it comes to the health of your family, AirKnight knows that every breath counts. Our 9-in-1 air quality monitor is equipped with powerful sensors that detect the main 8 kinds of air pollution CO2, VOCs, Formaldehyde, AQI, PM2.5 PM10 Dust Particles, more in REAL-TIME, all displayed on one sleek, clear LCD screen.. SIMPLE, FAST SETUP No complicated app, badly written instructions or Wi-Fi required for one of the most premium indoor air quality meters. Our device was specially designed to be operated by anyone, anywhere, so you can keep your space safe without a tech-induced headache. An instructional video is included also, just in case.. PORTABLE FOR EVERYWHERE, ANYTIME USE Featuring a heavy-duty 3000 mAh rechargeable Lithium-Ion battery, your AirKnight AK1000 portable air quality monitor is designed to travel with you, monitoring your air quality for hours at a time on a single charge. Never go unprotected again. WILDFIRES WOOD-BURNING APPLIANCES The Airknight AK1000 is perfect if you are near a wildfire or if you depend on old or wood powered appliances in your home. The 9 in 1 AK1000 is also a carbon dioxide monitor and guards your air quality by letting you know when particulate matter and VOCs are unusually high.. 2 YEAR WARRANTY AVAILABLE AirKnight is an American company that works tirelessly to ensure the overall quality of each indoor air quality monitor with rigorous testing. Simply put if you are not happy, we will replace your AirKnight AK1000 or give you your money back no questions asked.

Four-gas detector for surveying levels of H2S, oxygen O2, carbon monoxide CO, and combustibles in natural and industrial environments, and in other personal safety, training, research, and ambient air monitoring applications. Electrochemical cell sensor measures H2S and carbon monoxide levels in ppm, capillary-pore fuel cell measures oxygen in percent by volume, and catalytic bead combustible sensor measures explosive gases in percent LEL. Audio, visual, and vibration alarms alert simultaneously when ambient H2S, oxygen, carbon monoxide, and combustible gases reach preset low, high, TWA, or STEL levels. LCD screen shows up to four ambient gas concentrations, battery level, alarm condition, and the status of calibration, bump, and sensor self-tests. Integrated diaphragm pump allows for localized sampling of the atmosphere for more precise readings than those generated through diffusion.

RELIABLE RADON RESULTS As radon levels fluctuate daily, continuous long-term measuring is necessary. Airthings Wave Plus measures radon accurately and reliably. CLEAN AIR SENSORS Radon, Carbon Dioxide CO2, VOCs airborne such as kitchen gases, fumes and cleaning products, humidity, temperature and air pressure sensors allow you to gain full visibility into six key indoor air factors. EASY AND CLEAR RESULTS Connect via Bluetooth to the Airthings App or log in to the Airthings Dashboard online for detailed insights into your air. EASY Simply wave in front of the device to receive a color-coded visual indication of the overall air quality Green Good, Yellow Fair, Red Poor. WHAT YOU GET Airthings Wave Plus, 2 AA batteries, Quick Start Guide, Airthings Support and optional and free 5-year extended warranty to increase your standard product warranty..

Four-gas detector for surveying levels of H2S, oxygen O2, carbon monoxide CO, and combustibles in natural and industrial environments, and in other personal safety, training, research. Easy and comfortable to wear thin and lightweight, ambient air monitoring applications. Easy operation and straightforward training with one-button simplicity. Easy visual compliance with flashing, green IntelliFlash. LCD screen shows up to four ambient gas concentrations, battery level, alarm condition, and the status of calibration, bump, and sensor self-tests.

Continuous 2-year runtime. Simple one button operation. Low cost of ownership. IntelliDoX compatible. Country of origin Republic of Korea South Korea.

Multiple Detectable Gases - BIAOLING upgraded indoor air quality monitor built in DART electrochemical sensors that can accurate detect air of Carbon MonoxideCO,Carbon DioxideCO2, FormaldehydeHCHO, Volatile Organic CompoundTVOC, Particle MatterPM2.5PM10. This new mode can offer real time data and mean value, it is recommend you to focus on mean value of each gas after testing enough time because long-term monitoring, the real-time data exist instability.. Know Your Air Clearly - For everyone,It's necessary to know the air quality of the place where you live.This air monitor have LCD Digital Color Screen, large and easy to read. This air monitor will offer color indication to show overall environment quality which have GoodGreen, Mild PollutionYellow,Severe PollutionRed three grade. You can directly to know the overall environment quality and track on each gas mean value to know what gas in air is unsafe and take accordingly actions.. Easy Operate - This air monitor is easy to operate which just pressing the functional button and one full page design make everyone can easy to read all the real time readings at the same time. Size about 5.83 2.76 1.18. It's easy to carry the intelligent air quality monitor that can help us detect the air quality in household, kitchen, bedroom, office, school, car, hotel, travel, camping, party etc...especially in which has baby,child and pregnant woman.. 3000mAh Rechargeable Battery - BIAOLING Air Quality Detector has a 3000mAh rechargeable lithium battery and packed with USB cable that can last up to 8-12 hours. It is recommend you to charge 6 hours before first use and do not use it when charging or in lower battery because the data may not so accurate. Built-in low power consumption processing chip, can carry on long time uninterrupted monitoring to air quality. It will always take care of you and your family health.. Kindly Note - Please be aware this air quality monitor is for home indoor place, please kindly close door and window before testing. We do recommend using the monitor as a stationary unit and focus on long timeat least 60 minutes mean values and overall environment quality indication.If you have any questions regarding monitor functionality or you need any assistance on how to re-calibrate the sensors, please contact us via email..

Effective Gas Leak DetectorTOPTES PT520A can accurately help you locate the gas leakage of various combustible gases in tight spaces, such as methane, natural gas, propane, LPG, gasoline, etc. Note Please allow 30 seconds of warm-up time before the operation. Flexible Probe Easy to UseWith a 17-inch flexible gooseneck bendable in any direction, the portable gas leak detector makes it easy for you to access hard-to-reach areas, such as natural gas pipelines, propane storage tanks, gas fireplaces, sewers, basement, RV, and other narrow space. It can be carried anywhere to find leaks no matter outdoors or indoors. Visual Audible Alarm PT520A will rapidly respond in 0.5 seconds while gas is detected. Seven colored analog bars and a 75dB audible buzzer help you point out the gas leak location. Both of them increase with combustible gas concentration. Detection range 50 to 10,000 ppm based on Methane. User-Friendly Functions Activate or cancel the Auto Power-Off function through the APO button just in your need. When canceled, the detector will turn off after 10 minutes of inactivity to save power. In addition, you can turn off the audible alarm at any time via the Mute button to eliminate annoying alarm noise. The double-sided bar-shaped groove design and non-slip material make it wear-resistant and easy to hold. What You Get1PT520A Gas Leak Detector, 3AAA Batteries, 1Protective Case, and 1User Manual. We provide a 36-Month after-sale service and lifetime technical support. Please feel free to contact us if you have any questions or concerns.