Best Odor Detecting Air Monitor

Geiger Counter Gamma-Scout Alert Version - Hand Held Radiation Detector

General purpose survey meter for measuring and detecting ionizing radiation. It can detect alpha, beta, gamma and x-ray radiation.
Determine the source of radiation leakages， Monitor ambient radiation anomalies， Monitor personal cumulative dose exposure， Detect radioactive....

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Geiger Counter Gamma-Scout Standard Version - Hand Held Radiation Detector

General purpose survey meter for measuring and detecting ionizing radiation. It can detect alpha, beta, gamma and x-ray radiation.
Determine the source of radiation leakages， Monitor ambient radiation anomalies， Monitor personal cumulative dose exposure， Detect radioactive elements in metal scrap，Check rocks from the earth for radioactivity.

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Germ Guardian CDAP4500BCA 22” 4-in-1 WiFi & Bluetooth Smart Voice Control Air Purifier for Home, Smart AQM, UV-C, Filters Allergies, Dust, Pet Dander, & Odors, 3-Yr Wty, GermGuardian, Black

WIFI & BLUETOOTH ENABLED - Monitor and control your GermGuardian air purifier anywhere from the Guardian Technologies App that notifies you and sends important alerts.
VOICE CONTROL - Alexa and Google compatible for convenient setting changes.
4-IN-1 AIR PURIFIER FOR HOME - True HEPA air filter reduces up to 99.97% of harmful germs, mold spores, and odor while utilizing a built-in air quality monitor (AQM) that automatically adjusts speed to optimize room air quality.
KILLS GERMS - UV-C light helps kill airborne viruses such as influenza, staph, rhinovirus, and works with Titanium Dioxide to reduce volatile organic compounds.
TRAPS ALLERGENS - Pre-filter traps dust, pet hair, and other large particles while extending the life of the HEPA filter.

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GermGuardian CDAP5500BCA WiFi Smart 4-in-1 Air Purifier, SmartAQM Air Quality Monitor, Compatible with Alexa, True HEPA Filter, UV-C Sanitizer, Allergen & Odor Reduction, 28-inch Germ Guardian Air Purifier

WIFI & BLUETOOTH ENABLED - Monitor and control your GermGuardian air purifier anywhere from the Guardian Technologies App that notifies you and sends important alerts.
VOICE CONTROL - Alexa and Google compatible for convenient setting changes.
4-IN-1 AIR PURIFIER FOR HOME - True HEPA air filter reduces up to 99.97% of harmful germs, mold spores, and odor while utilizing a built-in air quality monitor (AQM) automatically adjusts speed to optimize room air quality.
KILLS GERMS - UV-C light helps kill airborne viruses such as influenza, staph, rhinovirus, and works with Titanium Dioxide to reduce volatile organic compounds.
TRAPS ALLERGENS - Pre-filter traps dust, pet hair, and other large particles while extending the life of the HEPA filter.

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AMTAST Barometer Altimeter Thermometer Weather Forecast Monitor for Climbing Camping Outdoor Sports, Multi-Function with Backlight

...The height value on the screen is the sea level of the current location. Press [ALTI/+] button to switch the use of altimeter and barometer..
Relative Altitude: Monitor the ascending or descending altitude from one certain location or the relative altitude for any mountain or object etc..
Weather Forecast: Apart from detecting the altitude, barometer also helps to forecast the weather for the forthcoming 12 to 24 hours basing on barometric pressure changes. The effective range is 30-50kms..
History Altitude Record: Press [HISTORY] button, you can view records of history altitude and air pressure. It will display the most previous record in this mode, then you can press [ALTI/+] or [-] button to forwards or backwards view history records. It can save most 256pcs records, the records’ distance are five minutes, and you can change the distance from 1-60 minutes if you press and hold [HISTORY] button for 2 seconds..
Save power design: When you don’t want to use the device, you press and hold [SET] button for 5 seconds, the device will stop all display enter into dormancy mode. And then you press any button, it will resume previous display. Backlight: In any mode, it can give you backlight for 5 seconds that you press any button..

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Gamma-Scout Rechargeable Geiger Counter Hand-held Radiation Detector - Rechargeable Model

General purpose survey meter for measuring and detecting ionizing radiation. It can detect alpha, beta, gamma and x-ray radiation.
Determine the source of radiation leakages， Monitor ambient radiation anomalies， Monitor personal cumulative dose exposure， Detect radioactive elements in metal scrap，Check rocks from the earth for radioactivity.
A power plug adapter will need to be purchased separately..

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Air Purifier with H13 True HEPA Filter, Air Cleaner for Pets, Allergies, Dust, Pollen, Smoke, Mold, and Odors, C350 Air Purifiers for Home, Large Room, Bedroom, Office by Storebary

... than when it’s on the lowest regular setting, the HEPA air purifier is running with the lowest noise level 24.5dB to help you sleep deeply. If you are a light-sensitive sleeper, the display light can be turned off completely to help you enjoy a perfect night of sleep..
【Smart Filter Reminder & PM2.5 Air Quality Monitor】 Our ozone-free air purifier is easy to remember when to change the filters with a built-in filter lifetime indicator, we recommend replacing the air filters every 2,500-3,000 hours depending on the air quality and frequency of using the odor eliminators (Please search C350-RF to get filter replacements). It’s also easy to know your room's current air quality with a PM2.5 sensor..
【Auto Mode & Timer Setting & Kid Friendly】 In auto mode, the smart air purifier adjusts the fan speed based on your indoor air quality. You can also leave the smoke eater run all the time or set a timer for 2, 4, 6, and 8 hours to save energy. Long press the lock button for 3 seconds to prevents kids or your pets from tampering with any of the other buttons or settings..
【5 Fan Speeds and Large Coverage】 Our air cleaner allows you to choose a suitable speed from Ⅰ to Ⅴ based on indoor air quality and space, suitable rooms up to 226ft² ....

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allsun Pro Ultrasonic Leak Detector& Transmitter Automotive Noise Finder Electronic Stethoscope Machine Noise Monitor 36-44KHz Air Gas Water Dust Leak Pressure Vacuum Diagnose Tool

【ULTRASONIC TECHNOLOGY】Ultrasonic Leak Detector& Transmitter uses ultrasonic sensing technology and features small size and light weight. It is reliable and easy to use and is a practical,portable tool..
【WORKING PRINCEPLE】Automotive Noise Finder,turbulence created by gas or air forced through a small office generates ultrasoncic sound. Ultrasonic sound occurs when the atmosphere leaks into a vacuum vessel or when a pressure vessel leaks to the outside atmosphere..
【FREQUENCY】Electronic Stethoscope, ultrasonic sound's frequency is related to the size of the orifice which ultrasonic sound passes through, but usually the frequency is about 40kHz. Frequency Response: 36kHz-44kHz..
【WIDELY APPLICATION】Machine Noise Monitor, machine Abnormal Noise Detect.
By using this instrument, you can quickly and accurately locate leaks in any pressure and vacuum system. Suitable for detecting cracks of pipes, valves,oil tank and other sealed compartment..
【WHAT YOU GET】Air leak detector package includes, Leak detector.

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AROEVE Air Purifier for Home CARB up to 300+ with Two H13 HEPA Air Filter(One is already in the purifier) for Dust, Pet Dander, Smoke, Pollen

...t can refresh air 2.5x per hour for a room as large as 438 ft² / 40 m², and you can enjoy a new and comfortable air environment every 12 min..
Sleek Air Quality Indicator: Are you still worrying about not knowing the surrounding air quality? Our air purifier with a built-in dust sensor will be a good choice. After detecting air quality automatically, the indicator light on the top will illuminate blue, yellow, or red. You can immediately grasp the current air condition and the effect of purification. With the modern lighting design, the air purifier is both beautiful and practical for you..
Personalized Settings: Three different timer options (8H-12H-24H) allow you to choose the required running time according to the actual air condition without consuming excess power. And different fan speed modes(1/2/auto) can meet your purification needs of various air quality environments. More personalized and easier to use, easily create a comfortable and fresh air space for you and your family..
Your Silent Companion: Choose the sleep mode, enjoy a quiet night, and even forget the existence of the air purifier. The fan of our air purifier runs with low noise and low speed, and all the indicators will turn off. It will not disturb your sweet sleep, and even a li....

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