LPG and Natural Gas Leak Detector - Gas Alarm

A gas leak detector warns you early when LPG or natural gas escapes into a room. A gas leak is dangerous because the gas can catch fire or explode when it meets a spark. The detector senses the gas in the air, and when the level rises above its set limit, it sounds a loud alarm and shows a warning light. This gives people time to open windows, switch off the gas and leave. Many models also have a relay output that can close a gas solenoid valve or start an exhaust fan, which makes the system even safer. Placement is very important. LPG is heavier than air, so it collects near the floor, and the detector should be low on the wall. Natural gas is lighter than air, so it rises, and the detector should be high on the wall or near the ceiling. This detector is used in home kitchens, restaurants, hotels, canteens and gas storage rooms.

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LPG and Natural Gas Leak Detector - Key Features

• Detects LPG and natural gas leaks
• Loud alarm and warning light
• Relay output on many models: controls a gas valve or exhaust fan
• Continuous monitoring of the air
• Simple wall mounting

LPG and Natural Gas Leak Detector - Technical Specifications

• Type: Gas leak detector with alarm (semiconductor or catalytic sensor, depending on the model)
• Gases: LPG and natural gas. Check which gas your model is made for
• Alarm: sound and light
• Output: relay on many models for a solenoid valve or fan
• Supply: usually mains or low voltage DC, depending on the model
• Alarm level: usually set at a small percentage of the lower explosive limit. Check your model
• Standards: check the label for the approval on your model

Who Should Buy This Detector?

• Home kitchens with LPG or piped gas
• Restaurants, canteens and hotels
• Gas storage rooms and cylinder stores
• Bakeries, hostels and guest houses
• Anyone with a gas heater or geyser indoors

Where to Install the Detector

Gas density decides the position. LPG is heavier than air, so the detector should be about 30cm from the floor and within about 4m of the gas appliance. Natural gas is lighter than air, so the detector should be near the ceiling, within about 4m of the appliance. Keep it away from fans, windows, steam and cooking fumes, because they can disturb the reading or cause false alarms.

Installation and Usage Guide

• Choose the right model and height for your gas type
• Fix it on the wall and connect the power supply
• Allow the sensor to warm up as the manual advises
• Connect the relay output to a gas solenoid valve or a fan if your model has one
• Test it with a gas tester or the test button
• If the alarm sounds, do not use switches or flames. Open the windows, close the gas and leave
• Installation should be done by a qualified person

Frequently Asked Questions

Where should I fit an LPG detector?
Low on the wall, near the floor and the appliance.

Where should I fit a natural gas detector?
High on the wall, near the ceiling.

Can it close the gas supply?
Many models have a relay output that can control a solenoid valve.

What should I do when it alarms?
Open windows, shut the gas, avoid sparks and leave the room.

Does it replace regular gas checks?
No. Have your gas system checked by a qualified person.

Does the sensor wear out?
Yes. Replace the detector as the maker advises.

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