Reviews Air Quality Alarm

KOPUO Indoor Air Quality Monitor, Home CO2 Detector Meter, Tabletop Digital Temperature and Humidity Gas Pollution Detector, NDIR Channel Sensor, LED Display Carbon Dioxide Tester for Home, Office.

  • 【Bezel Less LED Screen】: The KOPUO air quality tester boasts 3.5 inch LED Screen and an elegant profile. The minimalist design makes it look elegant and sleek anywhere. It is suitable to be placed anywhere and can be used as a decoration..
  • 【Upgrades High-Precision Data Range】: The air quality tester devices has built-in advanced Infrared (NDIR) & laser scattering detection sensors. Working Temp33.8°F-185°F, Indicator lights, simulation bars and facial expressions indicate multiple air quality levels. Note: The CO2 level of the air is not a fixed data,it's changing in a range anytime, so the reading in the display is fluctuating..
  • 【Upgrade Air Quality Monitor】: CO2, Temperature, Humidity,Time,AQI. Large and clear reading, with 3-color indicator AQI, All can accurately know the environmental quality immediately from wherever you look at it. Improved indoor air quality monitors can accurately detect a wide range of substances in the air..
  • 【Long battery life & Auto Alarm Function】:The built-in 2000 mAh battery can provide more than 10 hours of standby time when fully charged, in addition to real-time power through the included usb charging cable. When the air pollution index exceeds the standard, it will automatically remind....
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CO2 Monitor Air Quality Monitor CO2 Meter CO2 Detector Carbon Dioxide Monitor NDIR CO2 Sensor with Humidity and Indoor Thermometer Monitor (CO2)

  • 【REAL-TIME MONITORING】This carbon dioxide detector can accurately monitor CO2 concentration, air quality, environmental humidity, and temperature in real-time. The indoor air quality meter is embedded with a high-performance chip with a precision sensor. Indoor air quality can be monitored anytime and anywhere..
  • 【LED Display 】This co2 monitor is simple in design, 7.6-inch LED display with no refection, which could be seen clearly in any corner..
  • 【Color Warning and Sounding Alarm】400-1000ppm: value display is white, no sound.
  • 1001-2000ppm: value display is yellow, alarm every 15 seconds.
  • 2001-3000ppm: value display is orange, alarm every 5 seconds.
  • 3001-5000ppm: value display is red, alarm every 2 seconds. When the alarm is activated, any key can be used. During the alarm period, pressing any key will clear the alarm..
  • 【Portable and Easy to hang on】Comes with the adhesive strip.Design with hang hole. You can hang the CO2 monitor on the wall very easy or move it to place on the desk. The portable smart carbon dioxide detector can help us detect the carbon dioxide content in the living room, kitchen, bedroom, office, school, car, hotel, travel, camping, party, etc..
  • 【Flexible Power Supply&Warranty】CO2 Meter is powered by 5V2A(USB ca....
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MACHSWON 12V 110DB Car Horn, Loudspeaker Auto Car Truck Antique Vintage Style Old Horn Siren (Silver)

  • 【Old-fashioned old-fashioned air horn】 The car siren is designed in old style. This unique old fashioned air horn brings back old memories..
  • 【Equipment】 A 100% brand new and high quality 110DB antique vintage horn specially designed for cars, RVs or all 12V vehicles..
  • 【Complete kit easy to install】 Powerful alarm siren, easy to install with one button (install 1 bolt + 2 terminals to connect), very convenient to install, saving time and energy..
  • 【High Quality Alarm Correction】 110DB old fashioned alarm horn is made of high quality plastic, with long service life and beautiful appearance, which can decorate your beloved car..
  • 【Super loud to ensure your safety】 Powered by powerful motor, it can provide high sound power, frequency: 490Hz, sound pressure level: 110DB.
  • When driving in a noisy area, it can trigger an alarm to warn passing pedestrians..
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Air Quality Monitor Indoor, CO2 Detector, 6-in-1 Air Pollution Carbon Dioxide Detector with PM2.5/1/10, Temperature, Humidity Professional Sensor Real Time Reading, CO2 Alarm Meter

  • 【Know The Air Around You】: The air quality tester has built-in advanced Infrared (NDIR) & laser scattering detection sensors designed to accurately track air quality including CO2, PM2.5、PM1.0 and PM10 (particulate matter), temperature and humidity. Tips: Please let the device work short mins outdoor before use for most accurate results..
  • 【10 hours+ long standby & Auto Alarm Function】: The built-in 2000 mAh battery can provide more than 10 hours of standby time when fully charged, in addition to real-time power through the included usb charging cable, this enables long-term monitoring of air quality level. Press the main function key twice quickly to turn on/off the automatic alarm function (An alarm will be issued when the CO2 reading exceeds 1000ppm)..
  • 【2.8inch Instant Readout】: Professional sensors require a sampling time of only 1.5s, which can display the current air quality on the screen in real time. The CO2 detector uses a 2.8in large size display, which can show the readings simply and intuitively (The reading of PM1/PM2.5/PM10 automatically switches every 5s)..
  • 【Portable CO2 Detector】: A portable detector the size of a palm, is easy to carry and can detect the gas quality in bedroom, living room, kitchen, office, car, school,....
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X-Sense 10-Year Battery Combination Smoke and Carbon Monoxide Alarm Detector with Large Silence Button, XP01

  • ...der if your alarm is still functioning.
  • LOUD ALARM TONE: This XP01 alarm is designed to deliver an alarm tone of over 85 dB with a rapid flashing LED indicator when smoke or CO is detected.
  • this is sure to wake you and your family up, even when sound asleep, ensuring the safety and security of your home 24/7.
  • PREMIUM QUALITY: Made from a premium ABS material, ensuring exceptional quality and protection.
  • comes with a 60-day money-back guarantee, a 5-year warranty, and lifetime customer support.
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Indoor WiFi Air Quality Monitor Meter for PM2.5，CO2,AQI Temp Detector Real Time Data Recording，Digital Temperature and Humidity 7-in-1 Gas Pollution Pressure Detector, LED Display

  • 【A 7-in-1 Multifunction Air Quality Monitor】Air Monitor Lite tests 5 major factors of the indoor air quality: CO2, PM2.5, PM10, PM1.0, Temperature, Humidity, and AQI. By knowing the real-time air quality, you can turn on the air purifier or open the window when needed. Any question about the product please let us know via email, we will provide remote supports..
  • 【Support and Mobile Phone Connection】As this is a Wi-Fi device (ONLY works with 2.4GHz Wi-Fi)，The application we adopted is the most advanced graffiti intelligence technology in the market. You can monitor you in real time after you connect your phone and our tester. Use the graffiti monitoring software to remotely check 5 indicators. Automation can trigger (from PM2.5 and PM10) or advanced CO2 calculations on the aggregated "air quality" metric..
  • 【Upgrades High-Precision Data Range】The air quality tester devices has built-in advanced Infrared (NDIR) & laser scattering detection sensors. Working Temp33.8°F-185°F, Indicator lights, simulation bars and facial expressions indicate multiple air quality levels. Note: The CO2 level of the air is not a fixed data,it's changing in a range anytime, so the reading in the display is fluctuating..
  • 【Colorful HD LED Screen & Alarm Function....
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Langkou Air Quality Monitor Indoor, Carbon Dioxide Detector Portable Carbon Dioxide Monitor, CO2/Temperature/Humidity Meter, NDIR Sensor, Confined Space Air Monitor Tester Alarm, for Room/Car/School

  • 【PROTECTS EVERY BREATH】- Air Quality Monitor from Langkou, When it comes to the health of your family, Langkou knows that every breath counts. Our 3-in 1 Air quality monitor Indoor (CO2/Humidity/Temperature) with powerful NDIR sensors, real-time detection of major CO2 air pollution and simultaneous monitoring of room temperature and humidity, all displayed on a sleek, clear LED screen. Always protect the health of your family..
  • 【PROFESSIONAL PRECISION SENSOR】- NDIR CO2 sensor is a professional grade particle sensor, the best chip for indoor air quality monitors. Large air inlet and outlet duct design allows the internal sensor to accurately analyze each particle, while the CO2 concentration sampling takes only 1.5s. Bringing together the world's top technology, it provides you with the most accurate air pollution monitoring..
  • 【SOUND ALARM & CO2 CONCENTRATION STAGE】- This Carbon Dioxide Detector is designed with 4 stages of CO2 concentration—normal stage /warning stage/dangerous stage/very dangerous stage. With our Carbon Dioxide Detector, you can set the alarm threshold between 800-2000ppm, and it will alert you when the detected CO2 concentra....
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CO2 Detector, Simbow 3-in-1 Indoor Air Quality Monitor Ambient Temperature and Humidity, 400~5000 ppm, Rechargeable Battery Pollution Tester, Automatic Calibration CO2 Meter with Doodle Emoji.

  • [EASY CALIBRATION]:The CO2 air quality detector uses non-dispersive infrared technology (NDIR). Long Press A+B buttons for 10 seconds to manually calibrate the monitor to get accurate reading, recommend to calibrate once per month..
  • [HIGH ACCURACY]:The indoor air quality detector is built in NDIR infrared sensors that can accurate detect air of Carbon Dioxide(CO2)..
  • [MULTIPLE ALARM]:The air quality tester with multiple alarm, 3-color light indicator and 3 facial comfort expressions. You can intuitively understand the air quality you breathe..
  • [PORTABLE AND VARIOUS USE]:Size: 83*83*32 mm. It's easy to carry. The intelligent air quality monitor can help us detect the gas air pollution in household, kitchen, bedroom, office, school, car, hotel, travel, camping, party etc...especially in which has baby,child and pregnant woman..
  • [2400mAh RECHARGEABLE LITHIUM BATTERY]:Built with 2400mAh Rechargeable Lithium Battery and packaged with one USB cable, the standby time can last for 8 hours. If you are not 100% satisfied with your new air quality monitor, just let us know! Contact us via Amazon and we can help with any issues that you may have..
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X-Sense 10-Year Battery Smoke and Carbon Monoxide Detector with LCD Display, Dual Sensor Smoke and CO Alarm Complies with UL 217 & UL 2034 Standards, Auto-Check, SC08

  • ...O threat with both a loud 85 dB alarm and a rapid flashing red LED indicator.
  • this alarm is sure to wake up you and your family, even when sound asleep.
  • SIMPLE INSTALLATION & OPERATION: Battery-operated unit installs quickly and easily without an electrician.
  • one-button operation to test or silence the alarm.
  • ASSURED QUALITY: Approved by the ETL and meets the UL 217 and UL 2034 safety standards.
  • comes with a 60-day money-back guarantee, a 5-year warranty, and lifetime customer support.
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Kidde Smoke Detector Alarm | Battery Operated | Model # i9050 Pack of 2

  • Photoelectric Technology: Ardwolf smoke alarms with photoelectric technology which is optimized to notify slow smoldering fires which generate light smoke, little heat and may smolder for hours before bursting into flames..
  • UL Listed Battery-Powered: This Fire alarm is powered by one 9V battery(included), it will not be affected by power outage. When an intermittent "chirp" accompanied by a red LED flash every 32 seconds indicates a low battery..
  • 10 Years Life Time Alarm: with superior quality and technology, the smoke alarm can serve up to 10 years. NOTE: Please test it once a month and clean up the dust on the alarm every 6 months to ensure the smoke alarm works properly..
  • Sound & LED Warning: When the alarm sensers products of combustion and goes into alram, the red LED will flash rapidly (one flash per second). The rapid flashing LED and pulsating alarm will continue until the air is cleared or the test button is released..
  • Suitable for Multiple Places: This wireless smoke alarm does not contain any radioactive material. It should be installed in every room (except the bathroom and kitchen), making sure the people in your home will be able to hear and respond to the alarm sound..
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Car Alarm System with Remote Control, Security Antitheft Alarm System 120dB 6 Tone 7-Level Sensitivity Sensor,Alarm Loudspeaker Universal 12V Vehicle Alarm Security Protection System

  • 【Wireless Car Alarm】 Wireless Car Alarm System: different from the normal car alarm, this car alarm system doesn't have main unit box, doesn't have many cables, no need cut any origianl car cables,no damage to original car circuit, the shock sensor and the air pressure sensor are wireless to siren..
  • 【DIY Install Car Alarm】5 minutes to DIY Install: just need connect the siren black / red cable to car battery positive and negative port, then connect the high frequency antenna to siren connector, find a location and fix siren around the wiper, installation done! Don't like the normal car alarm, no need send to the car service shop for professional install, cost effective..
  • 【2-way Pager Car Alarm】Built in air pressure sensor, when detect car door/window/trunk open illegally, the siren will alarm, and notify to LCD remote control.
  • built in vibration/motion sensor, when detect car vibration or motion, the siren will alarm and notify to LCD remote control also..
  • 【Long Distance Alarm】The high frequency antenna ensure the car alarm system can be valid for 1000 meters..
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VJOYCAR Wireless Car Alarm 2-Way LCD Pager Remote Control DIY Install Universal Vehicle Anti-Theft Security Siren Horn System with Shock Vibration Window Door Trunk Open Alarm

  • 【Wireless Car Alarm】 Wireless Car Alarm System: different from the normal car alarm, this car alarm system doesn't have main unit box, doesn't have many cables, no need cut any origianl car cables,no damage to original car circuit, the shock sensor and the air pressure sensor are wireless to siren..
  • 【DIY Install Car Alarm】5 minutes to DIY Install: just need connect the siren black / red cable to car battery positive and negative port, then connect the high frequency antenna to siren connector, find a location and fix siren around the wiper, installation done! Don't like the normal car alarm, no need send to the car service shop for professional install, cost effective..
  • 【2-way Pager Car Alarm】Built in air pressure sensor, when detect car door/window/trunk open illegally, the siren will alarm, and notify to LCD remote control.
  • built in vibration/motion sensor, when detect car vibration or motion, the siren will alarm and notify to LCD remote control also..
  • 【Long Distance Alarm】The high frequency antenna ensure the car alarm system can be valid for 1000 meters..
  • 【Universal Car Alarm】Universal for cars 12-15V power input, pls don't install it if more than 15V voltage. Please contact with us at any time if you need assistance during insta....
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Lost Model Alarm RC Planes Buzzer RC Buzzer Alarm RC Helicopter Finder Alarm RC Buzzer Alarm Finder for RC Airplane Drone Anti-Lost Buzzer Tracker

  • 【Finder】100% brand new and high quality Signal loss Alarm & Lost Plane Finder.
  • 【RC Radio Receivers】RC lost Air plane finder helicopter Parkflyer tracer glider Aircraft Alarm.
  • 【TX】Turn on your TX. and you will hear 2 x beep sound.
  • 【Attention】Do not move any of the control stick on the TX or simply turn off the the TX. You will hear a continuous beep sound after 1 minute. It....
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