10 Best
Co Testers
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Product Highlights
- 【portable design co detectors with lanyard & magnet】our mini co detectors are designed to be portable and convenient. with dimensions of 3.0x2.7x1.2 inches, they are compact and easy to carry. the strong lanyard allows you to hang it anywhere you want, such as on the wall, backpack, tent inside, car, rv, and more. additionally, the built-in magnet allows you to easily a...
- 【more accuracy 3in1 co detectors】2s refresh time detecting carbon monoxide / temperature / humidity. [co range:0-500ppm, 0-49ppm: green bar flashing; 50-99ppm: yellow bar flashing with normal “di di di” sound alert; 100-500ppm: red bar flashing with rapid “di di di”sound alert.]; [temp range: 32℉ to 122℉]; [humidity range:0 to 90% rh]. real time detecting the co is so i...
- 【widely use compact and portable co detectors】with compact and portable design, our carbon monoxide detectors is perfect use for outdoor and indoor occasions. we can use it in bedroom, living room, kitchen or cellar. and also, it is a perfect tool for detect air safe when traveling, hotel trip, in car, rv travel, camping, picnic, business trip, or indoor barbecue .
- 【3-in-1 multifunctional co detector】our portable carbon monoxide detectors are not only capable of detecting co levels, but also temperature and humidity, and data is displayed on a colorful 1.5'' hd screen clearly. with a 2s refresh rate sensor , we can quickly determine the surrounding co value and overall air quality, real-time knowing the environment is safe or not.
- 【built-in 1000 mah battery & 120h working time】to increase the working time to 120h, we choose the newest battery and energy-save sensor. and also our co detectors support type-c fast charging, you can use your own fast charging adaptor and cable to charge it full in 1 hour.
- 【co alert value custom support】to satisfy all our customers’ need of co alert change, our co detector supports change co alert. the default alert value is 50ppm, and the customizable co value range is: 25-125ppm. please carefully read the manual before planing to change the co alert value.
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Product Highlights
- 【lcd screen】- clear and large lcd screen,lcd digital and character display for easy reading,battery: 3*aaa battery (not included).
- 【application】- meter is widely used in , chemical, coal, metallurgy, paper, fire, municipal, telecommunications, food, textile and other industries.
- 【small & portable】- small size, light weight, easy to carry and operate.a portable instrument for the detection of (co) gas.
- 【measuring range】- with a wide measuring range, the ambient temperature can be measured in 2 temperature units (°c and °f),0~50°c/ 32~122°f temperature.
- 【professional after-sales service】- we guarantee the product is 100% brand new. please feel free to contact us if you have any problems about our product, then we will make every effort to resolve it for you,and give you a satisfactory answer.
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Product Highlights
- 【audible and visual warning]: 85 db loud alarm beeps and red led flashes when dangerous level co gas is detected to provide instant alert signal effectively
- 【alarm stardant&energy]: 50ppm,alert 90 minutes,100ppm,alert within 40 minutes,300ppm,alert within 3 mintues. battery: dc3v (2*1.5v aa battery powered ),(battery not inlcuded)
- 【unique design]: build in carbon monoxide alarm with led display,electrochmical sensor,high consistency and stability with nice outlooking，
- 【alarm standard&led display]:the alert time depend the level of carbon monoxide concentration, and the display screen of the carbon monoxide alarm can accurately measure the concentration of carbon monoxide and its concentration data. the co level is between 000 to 999ppm. "lb" it displays for low battery and need to change battery, 'err' on the lcd to indicate the unit...
- 【suitable for all places]: houses, shops, hotels, restaurants, office buildings, schools, banks, libraries, computer rooms and warehouses, etc.
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Product Highlights
- Portable & compact design. this handheld carbon monoxide meter includes ring lanyard. the compact shape is convenient for you to carry, it is perfect for occasions like rv, in car, hotel, office, home kitchen, bathroom or any unfamiliar places with potential co harm.
- Come with 2x 3a battery. our co meter is battery replaceable design, we can easily replace new battery when there is no power. with power-saved mode: screen auto off after 1 min, but sensor still continue detecting co, 10+ days working time when power on.
- Built-in top-sensitive sensor. detect co range: 0-999ppm. this sensor can provide faster and more accurate detection data, allowing you to stay away from the harm caused by carbon monoxide.
- Audible & visual design. the real-time co concentration, alarm sound icon, and low-power battery icon all show on the 1.1'' hd screen. when the co concentration >50 ppm, the screen will turn all red and a loud audible alarm will sound "di di di di~".
- Why you need our co meter. carbon monoxide is colorless and odorless gas, when the concentration is over 50ppm, it will hurt our body. and co widely exists enclosed spaces.our co detector is widely use for indoor or outdoor activities and place like: kitchen, bathroom, hotel room, cellar, rv, in car, camping, tent, burning charcoal in winter etc.
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Product Highlights
- Powerful function: sound alarm works when co gas concentration reaches the level of the alarm. the concentration of alarm value can be freely set. auto shut off in 10 minutes without any operation. with a wide measuring range, the ambient temperature can be measured in 2 temperature units (°c and °f).
- Handheld size: the co gas meter is compact and lightweight, professional designed to fit comfortable in your palm，easy to carry and operate.
- Professional tool: the gas detector is a device that detects the presence of co gases in an area, often as part of a safety system. the professional detector can continuously monitor the co gas concentration accurately in the surrounding environment. this type of equipment is used to detect a gas leak and interface with a control system so a process can be automatically...
- Hgih quality：this co detector has a large led backlight screen that allows users to easily cope with harsh environments such as darkness, making it easy to read and free users from time and place constraints. adopt of abs engineering plastics with high toughness, wear-resistance and stability, with a low power consumption and high precision.
- Widely applicable: the gas detectors can be used to detect combustible, flammable and toxic gases, and oxygen depletion, etc. this type of device is widely used in industry and can be found in locations, such as on oil rigs, to monitor manufacture processes and emerging technologies such as photovoltaic. they may also be used in firefighting.
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Product Highlights
- ★with a wide measuring range:the ambient temperature can be measured in 2 temperature units (°c and °f).range can be measured in 2 units(ppm and μmol/mol).
- ★user-friendly design:small size, light weight, easy to carry and operate.with auto or manual power off setup.auto power off in 5 minutes without any operation.large lcd digital and character display for easy reading.high-quality materials,adopt of abs engineering plastics with high toughness, wear-resistance.
- ★professional and accurate measurement:a portable instrument for the detection of carbon monoxide (co) gas.very high accuracy (± 5% or ± 10ppm),the reaction time is <60s.resolution:1ppm or 1 μmol/mol.with a low power consumption and high precision.the service life of the sensor is 3 years.
- ★powerful function:can continuously monitor the co gas concentration in the surrounding environment.
- ★widely application: carbon monoxide meter is widely used in petroleum, chemical, coal, metallurgy, paper,municipal, telecommunications, food, textile and other industries.
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Product Highlights
- 【healthy home?】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, which have good(green), slight pollution(yellow),moderately pollution(red),severe pollution(purple) four grade. you can directly to know the overall environment quality and track on each gas mean value to ...
- 【color and sound alarm】you can rate detector real-time tests and analyze, risk levels with time display, when the normal is exceeded, the detector alarm sounds and the interface color will change, thus avoiding the risk.
- 【seansor type】semiconductor sensors, electrochemical sensors, and temperature and humidity sensors, ndir sensors, efficiently, stably, and sensitively detect gas concentrations, and identify the health of the air environment;a total of four sensors were used, namely temperature and humidity sensors, formaldehyde sensors, pm2.5 particulate matter sensors, and tvoc sensor...
- 【multifunctional& air quality monitor】 its available for 8 types of data, total control of air quality，formaldehyde(hcho), volatile organic compound(tvoc), particle matter(pm2.5),temperature(in ℃),humidity(in %). to guarantee the health of your family. before the first use or after long-term storage, please make sure to place it in a ventilated environment (indoor) for ...
- 【easy to operate】air quality detector has a 1500mah rechargeable lithium battery and packed with type-c cable that can last up to 4-5 hours. its easy to operate with just pressing the power on/off button, a button realizes all operations,design with lcd color screen digital display, it can offer mean value for each gas,it helps detect harmful hcho and tvoc around your r...
- 【application range】home, office, car, hotel, kitchen, bedroometc. its unit weight is 240g, and can be carried with you for testing at any time, healthier life for your family! if the product has any quality problems, please feel free to contact our customer service, we will provide you with satisfactory results. no risk! order it now!
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Product Highlights
- Three alarm methods; triple alarm mode of audio, light flashing, and vibration, strong reminder, safe and reliable, with adjustable alarm values and low alarm values
- 1.7 inch led backlight screen; fitter can easily read monitoring data even in dark environments
- Calibration cover; using this gas calibration cover can obtain more accurate, stable, and accurate calibration results that match the actual values on site
- Wider measurement range; nh3 0-100ppm; detection error better than ≤±5% fs; and response time t<60s; zero and span calibration options
- Support customization; if you need other types of gas detectors; please feel free to tell us at any time
- Industrial sensors; using internationally renowned sensors, with good sensitivity and excellent repeatability, and fast response, the service life can reach up to two years
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![HAKINAKU [3 in 1] Portable Carbon Monoxide Detector Fast Charge CO Alarm CO/Temperature/Air](https://m.media-amazon.com/images/I/41PmAFVWOeL._SL500_.jpg)
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