Gas leak detector with automatic shut-off valve kit: detector, DN15 solenoid valve and cable

DN15 1/2-inch gas solenoid shut-off valve for the gas leak detector

Wall-mounted flammable gas leak detector with mains plug

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ZZMarts

Gas Leak Detector with Automatic Shut-Off Valve – Flammable Gas Alarm (DN15)

Detects flammable gas leaks (CH4 / natural gas; suitable for LPG) via high-stability semiconductor sensor
Automatically shuts off the gas line with the integrated DN15 solenoid valve
Sound & light alarm (≥ 75 dB) with Test / Power / Alarm / Fault indicators
Sensor self-diagnosis, MCU control & temperature compensation
Alarms at 10% LEL (range 0–20% LEL); 3-minute preheat
Wide AC 90–240V input; low power (≤ 1.5W monitoring)

Rs.8,500.00

Price includes tax. Delivery calculated at checkout.

Why our price is lower

We import directly and supply the trade from two shops in Karachi and Lahore. There is no middleman between the container and you. Same product, fewer hands.

In stock, ready to ship

Limited stock

1 year service warranty Void if burnt or physically damaged Claim it at either shop, or send it back — we handle the manufacturer for you. Invoice included with every order.

Will this fit my setup?

Check the voltage your existing wiring or adaptor supplies.
Measure the space, door thickness or bracket spacing before ordering.
Confirm it works with the recorder, panel or app you already use.
Still not sure? Send a photo of the old part, the door or the existing setup. We will tell you what fits - usually within minutes during shop hours.

Need this installed?

We don't just sell it — we fit it. ZZ Marts has been installing security and automation across Pakistan since 2005. Tell us about the site and we'll quote supply and installation together.

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Free delivery on orders over Rs 5,000
2-3 working days to Karachi, Lahore and Islamabad · 3-5 elsewhere
Cash on delivery available nationwide
Order before 4pm for same-day delivery in Karachi and Lahore · prepaid orders only
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Free collection from our Karachi or Lahore shop

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Trading since 2005

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Product details

Gas Leak Detector with Automatic Shut-Off Valve protects your home, kitchen or shop from dangerous gas leaks. A high-stability semiconductor sensor continuously monitors for flammable gas (CH4 / natural gas, and suitable for LPG), and the moment the concentration reaches the alarm threshold it triggers a loud sound-and-light alarm and automatically closes the included DN15 solenoid valve to cut off the gas supply.

Clear Test, Power, Alarm and Fault indicators show status at a glance. On power-up it beeps and preheats for about 3 minutes, then the green light stays on for normal operation. Built-in sensor self-diagnosis, MCU control and temperature compensation keep it accurate and reliable.

It alarms at 10% LEL (measurement range 0–20% LEL) with a sound level of 75 dB or more, and runs on a wide AC 90–240V input. The DN15 (1/2") solenoid valve connects directly to the detector, so shut-off is fully automatic even when no one is home. Ideal for kitchens, restaurants, hostels, shops and homes using piped or cylinder gas. Supplied with the detector, DN15 valve and cabling. Backed by ZZ Marts with nationwide delivery.

Winter gas safety: read our guide to how a gas leak detector protects your home in winter, including where to fit it for Sui gas or LPG and what to do if the alarm sounds.

Specifications

Brand	ZZMarts

Detected Gas	Flammable gas — CH4 (natural gas); suitable for LPG Sensor: High-stability semiconductor Working Voltage: AC 90–240V Monitoring Power: ≤ 1.5W Alarm Power: ≤ 2W Alarm Concentration: 10% LEL Measurement Range: 0 – 20% LEL Preheating Time: 3 minutes Alarm Method: Sound & light (≥ 75 dB) Operating Temperature: -10 to +55°C Relative Humidity: ≤ 95% RH Dimensions: 115 × 72 × 45 mm Valve: DN15 (1/2\") solenoid shut-off valve Warranty: 1 Year (ZZ Marts)

Detected Gas

Flammable gas — CH4 (natural gas); suitable for LPG Sensor: High-stability semiconductor Working Voltage: AC 90–240V Monitoring Power: ≤ 1.5W Alarm Power: ≤ 2W Alarm Concentration: 10% LEL Measurement Range: 0 – 20% LEL Preheating Time: 3 minutes Alarm Method: Sound & light (≥ 75 dB) Operating Temperature: -10 to +55°C Relative Humidity: ≤ 95% RH Dimensions: 115 × 72 × 45 mm Valve: DN15 (1/2\") solenoid shut-off valve Warranty: 1 Year (ZZ Marts)

Specifications are provided by the manufacturer and may change without notice. Please confirm before installation.

Frequently asked questions

Does it automatically turn off the gas?

Yes — when it detects a leak at 10% LEL the detector sounds the alarm and closes the integrated DN15 solenoid valve to cut off the gas supply automatically. See more in Fire & Burglar Alarm Sensors.

What gas does it detect?

Flammable gas — mainly CH4 (natural gas/methane), and it is suitable for LPG installations. Measurement range 0–20% LEL with alarm at 10% LEL. Browse related alarms in Fire & Burglar Alarm Sensors.

What power supply does it need?

A wide AC 90–240V mains input, drawing ≤ 1.5W while monitoring. It preheats for about 3 minutes on power-up, then runs continuously. More options in Fire & Burglar Alarm Sensors.

Customer reviews

Reviews from people who bought this product from ZZ Marts.