KH Alert

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When purchasing a product, price is the consumer's primary concern. At present, KH Alert has 13 products for sale. KH Alert products range in price from $11.99 to $62.99, and the average price of all the products is about $36.77.

KH Alert Best Sellers

Last Updated: Jan 11, 2025

KH Alert Carbon Monoxide Detectors, Carbon Monoxide Detector Plug in with Temperature Humidity Sensor Built-in, CO Level Monitor Alarm with Clear LCD Display Sound & Light Warning for Home/Hotel/RV

Carbon Monoxide Detectors

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New Upgrades - This Carbon Monoxide detector Equipped with 3 major air indicators of Carbon Monoxide(0 to 999PPM), Temperature(1 to 176 ℉), and Humidity(0% to 95%RH) to protect your family.

Easy to Use - Plug and play, saving installation time.

Accuracy & Durability - This Carbon Monoxide Alarm use Imported Electrochemical Sensor, high reliability, more responsive, when the CO gas concentration reaches the alarm level(>150ppm), the Voice and Light alarm will work.

Compact Design & Clear LCD Display - Portable CO Gas Detector Meter is small and light, can be carry to anywhere easily, Big color LCD display, The high-definition screen makes it easy to read even at night.

Widely Used - CO Detector are suitable for bedroom, kitchen, living room, bathroom, apartment, garage, office, restaurant, hotel, RV etc.

Worry-Free After Service - We are willing to provide you with unconditional returns or exchanges within 180 days. If you have any questions, please contact us by email, we will try our best to help you solve the problem.

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KH Alert Plug in Carbon Monoxide and Natural Gas Detector, Combination Gas & Carbon Monoxide Detectors for Travel with Temperature Humidity Display, 4 in 1 CO and Gas Detector for Home/Travel(1 Pack)

Carbon Monoxide Detectors

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4 in 1 Combination Gas & Carbon Monoxide Detectors - Equipped with 4 major air indicators of Carbon Monoxide(0 to 2000PPM), Combustible Gas(0 to 10%LEL) Temperature(1 to 176 ℉), and Humidity(0% to 95%RH) to protect your family.

High Sensitivity Sensors - The 4 in 1 gas and CO detector contains a catalytic combustion sensor, an electrochemical sensor, A temperature and a humidity sensors. Them are all highly sensitive and accurate, real time to detect conditions of the environment.

Easy to Use - Plug and play, easy to install and easy to read. US Standard plug All 110V - 220V AC sockets can be used.

Color LCD Display & 85 High Volume Alarm - When the combustible gas or carbon monoxide gas reaches a certain level, the gas detector will display the gas concentration value and sound an alarm, allowing you to quickly determine and make the right choice.

Worry-Free After service - We provide 180 days no reason to refund service! 2 years warranty, If you have any questions, please contact us, we will solve your problem as soon as possible.

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KH Alert Natural Gas Detector, 3 in 1 Plug-in Propane Gas Detector(Gas, Temperature and Humidity Display), Combustible Gas Detector for Home & RV Gas Leak Detector for LNG, LPG, Methane

Gas Detectors & Alarms

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3 In 1 Plug In Natural Gas Detector - Our gas leak detector equipped with 3 major air indicators of Combustible Gas, Temperature, and Humidity to protect your family.

Accuracy & Durability - This Natural Gas Detector use Imported Catalytic Combustion Sensor, more responsive, when the gas concentration reaches the alarm level(>5%LEL), the Voice and light alarm will work.

Easy to Use - This is a new Plug-and-Play natural gas detector, which saves a lot of installation time. Big color LCD display, The high-definition screen makes it easy to read even at night.

Widely Used- When the concentration of combustible gas leaks to a preset level, the gas detector alarm will sound an 80dB alarm as well as display the concentration level of the gas. Detector de gas suitable for natural gas, propane, methane, butane, LNG, LPG, etc.

Warranty & Return Service Guarantee - 2 years warranty; If you have any technical problems, please contact us and we will reply you as soon as possible.

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Portable Carbon Monoxide Detector, KH Alert Handheld Carbon Monoxide Meter, High Precision CO Gas Leak Detector with LCD Color Display, Accurate & Easy to Read (Battery Not Included)

Carbon Monoxide Detectors

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3 Functional Combinations - CO Gas Tester can display Carbon Monoxide, Temperature and Humidity at the same time, Fully protect your property and personal safety.

Accuracy & Durability - This Carbon Monoxide Detector use Imported Electrochemical Sensor, high reliability, more responsive, when the CO gas concentration reaches the alarm level(>200ppm), the Voice and Vibration alarm will work.

Large LCD Backlight Screen - This CO detector has a large LCD backlight screen that allows users can use it easily, even in dark environments, Not limited by circumstance or location.

Handheld Design - The carbon monoxide tester is compact and lightweight, Ergonomic design, more comfortable to hold, easy to carry and operate.

Application Range - The carbon monoxide tester can be widely used in coal, oil rig, textile, chemical, metallurgy, papermaking, fire fighting, municipal and other industries.

Warranty & Return Service Guarantee - If you have any technical problems, please contact us and we will reply you as soon as possible.

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KH Alert Combination Gas & Carbon Monoxide Detectors, 4 in 1 Plug in CO Alarm & Natural Gas Detector with Temperature Humidity Display, Portable Gas and Carbon Monoxide Detectors for Travel

Carbon Monoxide Detectors

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New Upgrades - This Combination 4 in 1 detectors Equipped with 4 major air indicators of Carbon Monoxide(0 to 2000PPM), Gas(0 to 10%LEL), Temperature(1 to 176 ℉), and Humidity(0% to 99%RH) to protect your family.

Easy to Use - Plug and play, saving installation time.

Accuracy & Durability - This Combination Gas & Carbon Monoxide Detectors use High-precision electrochemical and catalytic combustion sensors, high reliability, more responsive, when the CO(Gas) concentration reaches the alarm level>150ppm(>5%LEL), the Voice and Flashing Light alarm will work.

Compact Design & Clear LCD Display - Portable CO and Gas Detector Alarm is small and light, can be carry to anywhere easily, Big color LCD display, The high-definition screen makes it easy to read even at night.

Widely Used - Our Combustible gas or carbon monoxide are suitable for bedroom, kitchen, living room, bathroom, apartment, garage, office, restaurant, hotel, RV etc.

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KH Alert Propane and Natural Gas Leak Detector, Portable Combustible Gas Sensor Sniffer with Color LCD Display, 3 in 1 Gas Leak Detector(Combustible Gas, Temperature & Humidity Display)

Gas Detectors & Alarms

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3 Functional Combinations - Our Portable Natural Gas Tester Detector can display Gas Value, Temperature and Humidity at the same time, Fully protect your property and personal safety.

Accuracy & Durability - This Natural Gas Leak Detector use Low Power Semiconductor Sensor, high reliability, more responsive, when the gas concentration reaches the alarm level(>2500ppm), the Voice and Vibration alarm will work.

Large LCD Backlight Screen - This Natural Gas Detector has a large LCD backlight screen that allows users can use it easily, even in dark environments, Not limited by circumstance or location.

Handheld Design - The Portable Combustible Gas Detector Sniffer is compact and lightweight, Ergonomic design, more comfortable to hold, easy to carry and operate.

Warranty & Return Service Guarantee - If you have any technical problems, please contact us and we will reply you as soon as possible.

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Plug in Carbon Monoxide and Natural Gas Detectors, KH Alert Combination Carbon Monoxide and Gas Detector with Light & Digital Display, 2 in 1 CO Gas Monitor for Home/Kitchen/Hotels(1 Pack)

Gas Detectors & Alarms

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2 in 1 Combustible Gas Detector and Carbon Monoxide Alarm -This 2 in 1 gas detector contains a catalytic combustion sensor and an electrochemical sensor for sensitive sensing and high accuracy, Protect you and your family from the threat of hidden gases.

Easy to Use - Plug and play, saving installation time. Easy to carry, you can take it with you when traveling or on business.

LED Display & 85 High Volume Alarm - When flammable gas leaks or carbon monoxide exceeds the standard, this gas detector will alarm and voice reminding, allowing you to quickly determine and make the right choice. the LED screen will show the concentration. It can help reduce your worries about accidentally turning on your stove gas or having too much carbon monoxide.

Combustible Gas Detection Range - LPG(Methane), natural gas, coal gas, gas fuel, artificial gas, liquefied petroleum gas, liquefied natural gas etc.

Worry-Free After service - We provide 180 days no reason to refund service! If you have any questions, please contact us, we will solve your problem as soon as possible.

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Plug in Carbon Monoxide Detectors 2 Pack, KH Alert 3-in-1 Carbon Monoxide Detector with Temperature and Humidity Sensor, Portable CO Monitor for Home/Apartment

Carbon Monoxide Detectors

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3-in-1 Carbon Monoxide Detectors - Our Carbon Monoxide detector Equipped with 3 major air indicators of CO(0 to 1000PPM), Temperature(1 to 176 ℉), and Humidity(0% to 95%RH) to protect your family.

Easy to Use - Plug and play, saving installation time. fits into any standard outlet with a voltage of 110-220V.

Accuracy & Durability - This Carbon Monoxide Alarm use high precision electrochemical sensor, high reliability, more responsive, when the CO gas concentration reaches the alarm level(>150ppm), the Voice and Light alarm will work.

Compact Design & Color LCD Display - Portable CO Gas Detector Meter is small and light, can be carry to anywhere easily, Big color LCD display, The high-definition screen makes it easy to read even at night.

Widely Used - CO Detector are suitable for bedroom, kitchen, living room, bathroom, apartment, garage, office, restaurant, hotel, RV etc.

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Carbon Monoxide Detectors, KH Alert 3-in-1 Travel CO Detector Humidity Temperature Meter, Portable Carbon Monoxide Detector with Sound and Light Alarm, Mini CO Gas Monitor for Home/Kitchen(2 Packs)

Carbon Monoxide Detectors

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New Upgrades Plug in 3 in 1 CO Detector - This Carbon Monoxide detectors travel can monitor the current air CO concentration, temperature and humidity in real time. CO Range: 0~999PPM(±5PPM), Temperature Range: 1~176 ℉(±3 ℉), Humidity Range: 0%~95%RH（±5%RH), Real-time monitoring and quick alarm.

Easy to Use - Plug and play, saving installation time. The CO detector has an AC plug-and-play design that fits into any standard outlet with a voltage of 110-220V. No need to drill holes in the wall.

Widely Used - CO Detector are suitable for bedroom, kitchen, living room, bathroom, apartment, garage, office, restaurant, hotel, RV etc.

Worry-Free After Service - We are willing to provide you with unconditional returns and exchanges within 180 days. If you have any questions, please contact us by email, we will try our best to help you solve the problem.

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KH Alert Carbon Monoxide Detector Plug in with Battery Backup, Portable Carbon Monoxide Detector for Travel, CO Alarm Monitor with Digital Display & Sound Light Warning for Home/Travel

Carbon Monoxide Detectors

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Protects During a Power Failure - New Upgrade of Carbon Monoxide Detector with battery backup in case of plug-in failure (9V Battery Not Included).

Real-Time Monitoring - When CO Concentration >100ppm, The LED displays the real-time gas concentration, so you can quickly understand the environmental conditions.

Easy to Install - Plug and play, saving installation time. Just plug in, and ready for monitoring potential gas leak risky after warm up process.

85Db Human Voice Warning - When CO gas concentration >150ppm , the carbon monoxide alarm immediately emits an audible alarm >85 dB, Keep your family safe with this Plug-in type CO Detector.

Widely Used - Carbon monoxide detectors are suitable for bedroom, kitchen, living room, bathroom, apartment, garage, office, restaurant, hotel, travel, RV etc.

Warranty & Return Service Guarantee - 2 Years Warranty, if you have any technical problems, please contact us, we will solve your problem as soon as possible.

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Portable Carbon Monoxide Detectors, KH Alert 3 in 1 Carbon Monoxide Detector, Lanyard and Bracket Design Mini Air Quality Monitor, Easy to Use CO Detector for Indoor Outdoor - 2 Pack

Carbon Monoxide Detectors

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3-In-1 Portable Carbon Monoxide Detector - Equipped with Big Color Screen, It can display Temperature, Humidity, and Carbon Monoxide concentration at the same time. Temperature measurement range is -30°C-60°C(-22℉-140℉), the accuracy is 1℃(±2℉), the Humidity measurement range is 0 ~ 95%, and the accuracy is ±5%. the measurement range of carbon monoxide is 0-1000PPM, accuracy is ±5PPM.

Accuracy & Durability - This Carbon Monoxide Detector use High Quality Electrochemical Sensor, high reliability, more responsive, When carbon monoxide concentration is >100ppm, it will be displayed, and when the carbon monoxide concentration is >150ppm, an alarm will be issued.

Easy to Use - 3 buttons are easy to use, Short press the "ON/OFF" button to switch it on and off. Short press the "M" key button to switch between ℃/℉. Short press the "S" key to test the detector whether alarm normal.

Built-in 1000mAh Rechargable Battery - After Repeated Tests, The carbon monoxide alarm standby time can reach 80 hours on a full charge, When the battery is too low, a low battery alert will occur and a low battery alert will also appear on the screen.

A Stand & Lanyard Design - Portable and compact design, It supports placing on the desktop or hanging on the wall. Suitable for living room, bedroom, kitchen, bathroom, garage, travel, camping, RV, etc.

Test Method - Carbon monoxide is generated in incomplete combustion and dense smoke. We can take it close to a cigarette or burning paper that produces thick smoke. The CO concentration will change and show on the screen. Don't test it by car exhaust or airy place, too low CO consentration can't not trigger sensor to work.

Worry-Free After service - We provide 180 days no reason to refund service! 1 years warranty, If you have any questions, please contact us, we will solve your problem as soon as possible.

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Plug-in Type Carbon Monoxide Alarm, CO Detector Monitor with LED Digital Display and Voice Alert for Home/Kitchen/Bedroom - 2 Pack

Carbon Monoxide Detectors

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Imported Electrochemical Sensor - Our CO Detector Use High Reliability Electrochemical Sensor, Fast response, high reliability, avoiding the possibility of false alarms.

Easy to Use - Just plug in, and ready for monitoring potential gas leak risky after warm up process.

Human Voice Warning - The plug in carbon monoxide detector is suitable for 24 hours gas leak monitoring, When a carbon monoxide gas leak occurs, it can quickly identify the gas and emit an alarm > 85 decibels to avoid dangerous accidents.

LED Digital Display - The portable carbon monoxide detector can real-time monitoring of carbon monoxide gas level display for your personal and property safety.

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Natural Gas Detector, Plug-in Home Gas Alarm and Monitor, Propane Gas Detector and Gas Leak Alarm for LNG, LPG, Methane, Coal Gas Detection in Kitchen, Home or Camper - 2 Pack

Gas Detectors & Alarms

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Protect Your Family - This gas detector will have voice warning once it smells the gas leak, fast alarm and you can do something that avoids to happen explosion and fire, It's enough to protect the safety of family and property.

Easy to Install - Our gas alarm adapts excellent industrial design and leaves 2nd outlet uninterrupted for other devices. Just plug in, and ready for monitoring potential gas leak risky after warm up process.

Digital Display & Voice Warning - The natural gas detector quickly and accurately detects gas leak to give you the earliest possible warning of gas leak with 85 dB alarm and flashing LED indicator.

Widely Used - This gas Detector are suitable for bedroom, kitchen, living room, bathroom, apartment, garage, office, restaurant, hotel, RV etc.

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Go to the KH Alert page.
Select the product you want in the KH Alert buying guide, and then view the product on Amazon. For example, if you are interested in the top 1 product KH Alert Carbon Monoxide Detectors, Carbon Monoxid..., you can view it on Amazon page.
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