Gas leak detectors

500+ products

Don’t forget to check the detection range and the type of gas supported to ensure the detector meets your specific safety needs.

Replaceable Battery Carbon Monoxide Detector with LED Digital Display, CO Alarm for Home Security, Portable CO Monitor for Indoor Use (1/5)

Replaceable Battery Carbon Monoxide Detector with LED Digital Display, CO Alarm for Home Security, Portable CO Monitor for Indoor Use (2/5)

Replaceable Battery Carbon Monoxide Detector with LED Digital Display, CO Alarm for Home Security, Portable CO Monitor for Indoor Use (3/5)

Replaceable Battery Carbon Monoxide Detector with LED Digital Display, CO Alarm for Home Security, Portable CO Monitor for Indoor Use

~~£37.22~~

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ANENG GN805 Combustible Gas Leak Detector 50 1000PPM Audible Alarm Gas Sensitive Semiconductor Analyzer LCD Backight Environmental Test Tools (1/5)

ANENG GN805 Combustible Gas Leak Detector 50 1000PPM Audible Alarm Gas Sensitive Semiconductor Analyzer LCD Backight Environmental Test Tools

~~£40.24~~

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AC 220V Standalone Coal Gas Leak Detector with Natural Gas Alarm, NC/NO Relay Output (1/3)

AC 220V Standalone Coal Gas Leak Detector with Natural Gas Alarm, NC/NO Relay Output

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Battery-powered carbon monoxide detector alarm (pack of 1)High quality. An ideal choice for families. (1/5)

Battery-powered carbon monoxide detector alarm (pack of 1)High quality. An ideal choice for families. (2/5)

Battery-powered carbon monoxide detector alarm (pack of 1)High quality. An ideal choice for families. (3/5)

Battery-powered carbon monoxide detector alarm (pack of 1)High quality. An ideal choice for families.

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Portable carbon monoxide detector with LCD screen, replaceable battery and low battery alarm – EU standard (1/5)

Portable carbon monoxide detector with LCD screen, replaceable battery and low battery alarm – EU standard (2/5)

Portable carbon monoxide detector with LCD screen, replaceable battery and low battery alarm – EU standard (3/5)

Portable carbon monoxide detector with LCD screen, replaceable battery and low battery alarm – EU standard

~~£35.89~~

Carbon Monoxide Gas Detector Alarm Detector Battery Powered CO2 Alarm Detector with LCD Display Voice Warning (1/4)

Carbon Monoxide Gas Detector Alarm Detector Battery Powered CO2 Alarm Detector with LCD Display Voice Warning (2/4)

Carbon Monoxide Gas Detector Alarm Detector Battery Powered CO2 Alarm Detector with LCD Display Voice Warning

~~£41.07~~

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Carbon Monoxide Detector with Digital LCD Display, CO Detector with Replaceable Battery, Test Reset Button, Low Battery Indicator, Portable, Complies with NO (1/5)

Carbon Monoxide Detector with Digital LCD Display, CO Detector with Replaceable Battery, Test Reset Button, Low Battery Indicator, Portable, Complies with NO

~~£41.07~~

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Combination Gas Detector Carbon Monoxide Smoke Detector Battery Operated CO Smoke Detector with LED Display Flash Audible Alarm Sound Warning Pattern (1/4)

Combination Gas Detector Carbon Monoxide Smoke Detector Battery Operated CO Smoke Detector with LED Display Flash Audible Alarm Sound Warning Pattern

~~£37.34~~

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Carbon Monoxide Gas Alarm Detector, Battery-Powered CO2 Alarm Detector with LCD Display, Voice Warning, Sunlight (1/5)

Carbon Monoxide Gas Alarm Detector, Battery-Powered CO2 Alarm Detector with LCD Display, Voice Warning, Sunlight (2/5)

Carbon Monoxide Gas Alarm Detector, Battery-Powered CO2 Alarm Detector with LCD Display, Voice Warning, Sunlight (3/5)

Carbon Monoxide Gas Alarm Detector, Battery-Powered CO2 Alarm Detector with LCD Display, Voice Warning, Sunlight

~~£39.65~~

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Carbon Monoxide Detector with LCD Display, Carbon Monoxide Alarm Detector (1/5)

Carbon Monoxide Detector with LCD Display, Carbon Monoxide Alarm Detector (2/5)

Carbon Monoxide Detector with LCD Display, Carbon Monoxide Alarm Detector (3/5)

Carbon Monoxide Detector with LCD Display, Carbon Monoxide Alarm Detector

~~£42.13~~

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Carbon monoxide detector with digital LCD screen, CO detector with replaceable battery, test reset button, low battery indicator, portable, compliant (1/4)

Carbon monoxide detector with digital LCD screen, CO detector with replaceable battery, test reset button, low battery indicator, portable, compliant

~~£35.72~~

HT60 Portable Gas Leak Detector, Combustible Gas Detector, Compatible with Natural Gas, Methane and Propane (1/5)

HT60 Portable Gas Leak Detector, Combustible Gas Detector, Compatible with Natural Gas, Methane and Propane (2/5)

HT60 Portable Gas Leak Detector, Combustible Gas Detector, Compatible with Natural Gas, Methane and Propane (3/5)

HT60 Portable Gas Leak Detector, Combustible Gas Detector, Compatible with Natural Gas, Methane and Propane

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Battery-powered carbon monoxide detector, gas detector with display and temperature indicator (battery not included). (1/5)

Battery-powered carbon monoxide detector, gas detector with display and temperature indicator (battery not included). (2/5)

Battery-powered carbon monoxide detector, gas detector with display and temperature indicator (battery not included). (3/5)

Battery-powered carbon monoxide detector, gas detector with display and temperature indicator (battery not included).

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Natural gas detector, ABS ceiling-mounted, with audible and visual alerts, gas alarm for home safe, 1228V (1/5)

Natural gas detector, ABS ceiling-mounted, with audible and visual alerts, gas alarm for home safe, 1228V (2/5)

Natural gas detector, ABS ceiling-mounted, with audible and visual alerts, gas alarm for home safe, 1228V (3/5)

Natural gas detector, ABS ceiling-mounted, with audible and visual alerts, gas alarm for home safe, 1228V

~~£30.06~~

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Carbon Monoxide Detector, Portable Carbon Monoxide Detector with LCD Digital Display for Home Travel, Approved Carbon Monoxide Alarm (1/4)

Carbon Monoxide Detector, Portable Carbon Monoxide Detector with LCD Digital Display for Home Travel, Approved Carbon Monoxide Alarm (2/4)

Carbon Monoxide Detector, Portable Carbon Monoxide Detector with LCD Digital Display for Home Travel, Approved Carbon Monoxide Alarm

~~£40.28~~

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Carbon Monoxide Detector, Intelligent Carbon Monoxide Detector with LCD Display, Complies with EN 50291 Standard, with Test Button and LED Status Indicator (Mini 1PC) (1/4)

Carbon Monoxide Detector, Intelligent Carbon Monoxide Detector with LCD Display, Complies with EN 50291 Standard, with Test Button and LED Status Indicator (Mini 1PC)

~~£40.28~~

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Carbon Monoxide Detector, Portable White Carbon Monoxide Detector, Digital Display CO Alarm (1/3)

Carbon Monoxide Detector, Portable White Carbon Monoxide Detector, Digital Display CO Alarm

~~£38.47~~

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Portable carbon monoxide detector - Digital LCD screen - Rechargeable lithium battery power supply - Audible alarm - Complies with UL2034 standard (1/5)

Portable carbon monoxide detector - Digital LCD screen - Rechargeable lithium battery power supply - Audible alarm - Complies with UL2034 standard

~~£38.47~~

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Carbon Monoxide Detector with LED display / Electronic sensor, Carbon monoxide alarm detector (1/5)

Carbon Monoxide Detector with LED display / Electronic sensor, Carbon monoxide alarm detector (2/5)

Carbon Monoxide Detector with LED display / Electronic sensor, Carbon monoxide alarm detector (3/5)

Carbon Monoxide Detector with LED display / Electronic sensor, Carbon monoxide alarm detector

~~£38.47~~

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Gas detectors, Natural gas detector, Multi-gas detector with socket for natural gas and LPG (gas sensor) (1/4)

Gas detectors, Natural gas detector, Multi-gas detector with socket for natural gas and LPG (gas sensor) (2/4)

Gas detectors, Natural gas detector, Multi-gas detector with socket for natural gas and LPG (gas sensor)

~~£36.91~~

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Gas Detector, Combined Carbon Monoxide Smoke Detector, Battery-Operated CO Smoke Detector with LED Display, Flashing Alarm, Audible Warning Pattern - White (1/5)

Gas Detector, Combined Carbon Monoxide Smoke Detector, Battery-Operated CO Smoke Detector with LED Display, Flashing Alarm, Audible Warning Pattern - White

~~£36.99~~

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MQ-4 Natural Gas Methane Sensor Module, MQ Gas Module, MQ Sensor, MQ-4 Module (1/5)

MQ-4 Natural Gas Methane Sensor Module, MQ Gas Module, MQ Sensor, MQ-4 Module (2/5)

MQ-4 Natural Gas Methane Sensor Module, MQ Gas Module, MQ Sensor, MQ-4 Module (3/5)

MQ-4 Natural Gas Methane Sensor Module, MQ Gas Module, MQ Sensor, MQ-4 Module

~~£30.69~~

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MQ-4 Natural Gas Methane Sensor Module, MQ Gas Module, MQ Sensor, MQ-4 Module

~~£30.69~~

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Gas detector, natural gas, gas leak detector, butane-methane-propane gas detector, flashing light alarm, plug-in gas alarm for kitchen - 1 FLITI unit (1/4)

Gas detector, natural gas, gas leak detector, butane-methane-propane gas detector, flashing light alarm, plug-in gas alarm for kitchen - 1 FLITI unit (2/4)

Gas detector, natural gas, gas leak detector, butane-methane-propane gas detector, flashing light alarm, plug-in gas alarm for kitchen - 1 FLITI unit

~~£39.63~~

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Carbon monoxide gas detector – 85 dB alarm – Powered by 3 AA batteries – LCD display – Easy installation with screw kit (1/5)

Carbon monoxide gas detector – 85 dB alarm – Powered by 3 AA batteries – LCD display – Easy installation with screw kit (2/5)

Carbon monoxide gas detector – 85 dB alarm – Powered by 3 AA batteries – LCD display – Easy installation with screw kit (3/5)

Carbon monoxide gas detector – 85 dB alarm – Powered by 3 AA batteries – LCD display – Easy installation with screw kit

~~£37.51~~

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12V Gas Alarm Sensor Propane Butane LPG Alarm Natural Motorhome (1/4)

12V Gas Alarm Sensor Propane Butane LPG Alarm Natural Motorhome (2/4)

12V Gas Alarm Sensor Propane Butane LPG Alarm Natural Motorhome

~~£39.14~~

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2 Pack Battery Operated Carbon Monoxide Detector with Digital LCD Display for Home, Kitchen, Restaurant, Hotel, Office - Batteries Not Included (1/5)

2 Pack Battery Operated Carbon Monoxide Detector with Digital LCD Display for Home, Kitchen, Restaurant, Hotel, Office - Batteries Not Included (2/5)

2 Pack Battery Operated Carbon Monoxide Detector with Digital LCD Display for Home, Kitchen, Restaurant, Hotel, Office - Batteries Not Included (3/5)

2 Pack Battery Operated Carbon Monoxide Detector with Digital LCD Display for Home, Kitchen, Restaurant, Hotel, Office - Batteries Not Included

~~£39.14~~

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2pcs Carbon Monoxide Detector with LCD Digital Display, CO Detector Equipped with a Replaceable Battery with Standard Lifespan UL2034 White (1/5)

2pcs Carbon Monoxide Detector with LCD Digital Display, CO Detector Equipped with a Replaceable Battery with Standard Lifespan UL2034 White (2/5)

2pcs Carbon Monoxide Detector with LCD Digital Display, CO Detector Equipped with a Replaceable Battery with Standard Lifespan UL2034 White (3/5)

2pcs Carbon Monoxide Detector with LCD Digital Display, CO Detector Equipped with a Replaceable Battery with Standard Lifespan UL2034 White

~~£30.30~~

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Ikodm Carbon Monoxide Detector with Replaceable Battery, LED Digital Display, CO Alarm for Home Security, Portable CO Monitor for Indoor Use (1/5)

Ikodm Carbon Monoxide Detector with Replaceable Battery, LED Digital Display, CO Alarm for Home Security, Portable CO Monitor for Indoor Use (2/5)

Ikodm Carbon Monoxide Detector with Replaceable Battery, LED Digital Display, CO Alarm for Home Security, Portable CO Monitor for Indoor Use (3/5)

Ikodm Carbon Monoxide Detector with Replaceable Battery, LED Digital Display, CO Alarm for Home Security, Portable CO Monitor for Indoor Use

~~£30.28~~

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Gas Detector Combination Carbon Monoxide Smoke Detector Battery Operated CO Smoke Detector with LED Flash Display Screen Audible Alarm Audible Warning Pattern (1/4)

Gas Detector Combination Carbon Monoxide Smoke Detector Battery Operated CO Smoke Detector with LED Flash Display Screen Audible Alarm Audible Warning Pattern

~~£38.82~~

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Carbon Monoxide Alarm Detector Battery Powered CO Alarm Detector with LCD Voice Warning (1/5)

Carbon Monoxide Alarm Detector Battery Powered CO Alarm Detector with LCD Voice Warning (2/5)

Carbon Monoxide Alarm Detector Battery Powered CO Alarm Detector with LCD Voice Warning (3/5)

Carbon Monoxide Alarm Detector Battery Powered CO Alarm Detector with LCD Voice Warning

~~£37.92~~

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AC 220V Standalone Coal Gas Leak Detector with Natural Gas Alarm NC NO Relay Output (1/4)

AC 220V Standalone Coal Gas Leak Detector with Natural Gas Alarm NC NO Relay Output (2/4)

AC 220V Standalone Coal Gas Leak Detector with Natural Gas Alarm NC NO Relay Output

~~£39.07~~

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Explosive and Combustible Natural Gas Detector, Propane Alarm for Home Kitchen (1/5)

Explosive and Combustible Natural Gas Detector, Propane Alarm for Home Kitchen (2/5)

Explosive and Combustible Natural Gas Detector, Propane Alarm for Home Kitchen (3/5)

Explosive and Combustible Natural Gas Detector, Propane Alarm for Home Kitchen

~~£38.69~~

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2pcs Carbon Monoxide Detector with LCD Digital Display, CO Detector Equipped with a Replaceable Battery with Standard Lifespan UL2034 White

~~£30.26~~

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Carbon monoxide detector, intelligent carbon monoxide detector with LCD display, complies with standard EN 50291, 1 piece (1/5)

Carbon monoxide detector, intelligent carbon monoxide detector with LCD display, complies with standard EN 50291, 1 piece (2/5)

Carbon monoxide detector, intelligent carbon monoxide detector with LCD display, complies with standard EN 50291, 1 piece (3/5)

Carbon monoxide detector, intelligent carbon monoxide detector with LCD display, complies with standard EN 50291, 1 piece

~~£31.21~~

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Gas Detector Combination Carbon Monoxide Smoke Detector Battery Operated CO Smoke Detector with LED Flash Display Screen Audible Alarm Audible Warning Pattern

~~£38.63~~

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Halogen Leak Detector, Refrigerant Leak Tester, CFC/HFC Gas Refrigerant Leak Detector (1/5)

Halogen Leak Detector, Refrigerant Leak Tester, CFC/HFC Gas Refrigerant Leak Detector (2/5)

Halogen Leak Detector, Refrigerant Leak Tester, CFC/HFC Gas Refrigerant Leak Detector (3/5)

Halogen Leak Detector, Refrigerant Leak Tester, CFC/HFC Gas Refrigerant Leak Detector (4/5)

Halogen Leak Detector, Refrigerant Leak Tester, CFC/HFC Gas Refrigerant Leak Detector

~~£62.30~~

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MQ-6 Propane Liquefied Gas Detection Module Gas Sensor Module (1/5)

MQ-6 Propane Liquefied Gas Detection Module Gas Sensor Module (2/5)

MQ-6 Propane Liquefied Gas Detection Module Gas Sensor Module (3/5)

MQ-6 Propane Liquefied Gas Detection Module Gas Sensor Module

~~£30.91~~

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MQ-3 alcohol ethanol sensor module alcohol gas detection alarm (1/5)

MQ-3 alcohol ethanol sensor module alcohol gas detection alarm (2/5)

MQ-3 alcohol ethanol sensor module alcohol gas detection alarm (3/5)

MQ-3 alcohol ethanol sensor module alcohol gas detection alarm

~~£30.91~~

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MQ-2 Smoke Gas Sensor Module, Methane Liquefied Gas Combustible Gas Detection and Sensing Module (1/5)

MQ-2 Smoke Gas Sensor Module, Methane Liquefied Gas Combustible Gas Detection and Sensing Module (2/5)

MQ-2 Smoke Gas Sensor Module, Methane Liquefied Gas Combustible Gas Detection and Sensing Module (3/5)

MQ-2 Smoke Gas Sensor Module, Methane Liquefied Gas Combustible Gas Detection and Sensing Module

~~£30.91~~

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MQ-7 Carbon Monoxide Sensor Module, Gas Sensing Sensor Detection and Alarm Module (1/5)

MQ-7 Carbon Monoxide Sensor Module, Gas Sensing Sensor Detection and Alarm Module (2/5)

MQ-7 Carbon Monoxide Sensor Module, Gas Sensing Sensor Detection and Alarm Module (3/5)

MQ-7 Carbon Monoxide Sensor Module, Gas Sensing Sensor Detection and Alarm Module

~~£30.91~~

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MQ-7 Carbon Monoxide Sensor Module, Gas Sensing Sensor Detection and Alarm Module

~~£30.91~~

Free shipping

MQ-2 Smoke Gas Sensor Module, Methane Liquefied Gas Combustible Gas Detection and Sensing Module

~~£30.91~~

Free shipping

MQ-6 Propane Liquefied Gas Detection Module Gas Sensor Module

~~£30.91~~

Free shipping

MQ-3 alcohol ethanol sensor module alcohol gas detection alarm

~~£30.91~~

Free shipping

MQ-4 Natural Gas Methane Sensor Module, MQ Gas Module, MQ Sensor, MQ-4 Module

~~£30.69~~

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Natural and sleep-inducing gas detector, gas detector, gas alarm, leak alarm detector (1/5)

Natural and sleep-inducing gas detector, gas detector, gas alarm, leak alarm detector (2/5)

Natural and sleep-inducing gas detector, gas detector, gas alarm, leak alarm detector (3/5)

Natural and sleep-inducing gas detector, gas detector, gas alarm, leak alarm detector (4/5)

Natural and sleep-inducing gas detector, gas detector, gas alarm, leak alarm detector

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85 dB Gas Detector, Natural Gas Alarm, LPG, Propane, Plug-in Alarm with Digital Display for Home (1/5)

85 dB Gas Detector, Natural Gas Alarm, LPG, Propane, Plug-in Alarm with Digital Display for Home (2/5)

85 dB Gas Detector, Natural Gas Alarm, LPG, Propane, Plug-in Alarm with Digital Display for Home (3/5)

85 dB Gas Detector, Natural Gas Alarm, LPG, Propane, Plug-in Alarm with Digital Display for Home (4/5)

85 dB Gas Detector, Natural Gas Alarm, LPG, Propane, Plug-in Alarm with Digital Display for Home

~~£44.50~~

Carbon monoxide detector, intelligent carbon monoxide detector with LCD display, complies with standard EN 50291, 1 piece--BIEMMEDUE (1/5)

Carbon monoxide detector, intelligent carbon monoxide detector with LCD display, complies with standard EN 50291, 1 piece--BIEMMEDUE (2/5)

Carbon monoxide detector, intelligent carbon monoxide detector with LCD display, complies with standard EN 50291, 1 piece--BIEMMEDUE (3/5)

Carbon monoxide detector, intelligent carbon monoxide detector with LCD display, complies with standard EN 50291, 1 piece--BIEMMEDUE

~~£47.41~~

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Carbon monoxide (CO) alarm detector with digital display, 85 dB audible alarm for home and office (batteries not included) (1/5)

Carbon monoxide (CO) alarm detector with digital display, 85 dB audible alarm for home and office (batteries not included) (2/5)

Carbon monoxide (CO) alarm detector with digital display, 85 dB audible alarm for home and office (batteries not included) (3/5)

Carbon monoxide (CO) alarm detector with digital display, 85 dB audible alarm for home and office (batteries not included)

~~£37.12~~

LCD Carbon Monoxide Detector – Electrochemical Sensor – 85 dB Audible Alarm – LED Indicator – For Home Use (1/5)

LCD Carbon Monoxide Detector – Electrochemical Sensor – 85 dB Audible Alarm – LED Indicator – For Home Use (2/5)

LCD Carbon Monoxide Detector – Electrochemical Sensor – 85 dB Audible Alarm – LED Indicator – For Home Use (3/5)

LCD Carbon Monoxide Detector – Electrochemical Sensor – 85 dB Audible Alarm – LED Indicator – For Home Use

~~£37.11~~

Natural gas leak detector, self-testing, liquefied petroleum gas alarm for home kitchen, 220V CN plug (1/3)

Natural gas leak detector, self-testing, liquefied petroleum gas alarm for home kitchen, 220V CN plug

~~£31.19~~

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Carbon Monoxide Detector, CO Detector, Battery Operated Carbon Monoxide Alarm with LCD Display (1/5)

Carbon Monoxide Detector, CO Detector, Battery Operated Carbon Monoxide Alarm with LCD Display (2/5)

Carbon Monoxide Detector, CO Detector, Battery Operated Carbon Monoxide Alarm with LCD Display (3/5)

Carbon Monoxide Detector, CO Detector, Battery Operated Carbon Monoxide Alarm with LCD Display

~~£40.69~~

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Carbon monoxide detectors, portable CO alarm detection device with LCD digital display for home and travel, UL listed carbon monoxide alarm with electronic sensor (1/4)

Carbon monoxide detectors, portable CO alarm detection device with LCD digital display for home and travel, UL listed carbon monoxide alarm with electronic sensor

~~£40.86~~

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Carbon Monoxide Detector, Intelligent Carbon Monoxide Detector with LCD Screen, Compliant with EN 50291 Standard, with Test Button and LED Status Indicator (Mini 1PC) (1/4)

Carbon Monoxide Detector, Intelligent Carbon Monoxide Detector with LCD Screen, Compliant with EN 50291 Standard, with Test Button and LED Status Indicator (Mini 1PC)

~~£40.98~~

Free shipping