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Gas Leak Detectors

Reliable LPG, Natural Gas, and CO detection for residential, commercial, and industrial environments

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ALL DETECTOR MODELS

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COB-380V

Battery-Type CO Gas Detector

Portable CO detector for home and camping. Magnetic mount + annular bracket. 300,000+ units sold.

3V Battery70dB+ Alarm250ppm CO

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COB-480S

Value-Series CO Gas Detector

Same proven CO detection performance as COB-380V in a value-optimised enclosure. Dual 경보/전원 LED indicators. Ideal for volume and OEM orders.

3V Battery70dB+ Alarm250ppm CO

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FB-365

Standard LPG/LNG Detector

Reliable LPG and natural gas detection for home kitchens and restaurants.

DC 12V70dB+ Alarm-20°C~60°C

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FB-365R

LPG/LNG Detector with Relay

Same as FB-365 with added relay output for automatic shutoff valve integration.

DC 12V70dB+ Relay-20°C~60°C

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FB-370

Waterproof LPG/LNG Detector

Waterproof AC-direct detector with enhanced sensitivity and faster response. No transformer required.

AC 220V70dB+ Alarm-20°C~40°C

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FB-370R

Waterproof Detector with Relay

FB-370 with relay contact for integration with gas alarm controller systems.

AC 220V70dB+ Relay-20°C~40°C

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TECHNICAL SPECIFICATIONS

Standard Detector Specifications

Applies to all residential and commercial series detectors (FB/COB series)

Detection Gas

LNG, LPG

Power Supply

DC 12V ±10%

Alarm

Buzzer (70dB+) + LED Flash

Warm-up Time

1 minute after power applied

Operating Temp

-20°C ~ 60°C

Operating Humidity

20% ~ 85% RH

Detection Level

Below 1/4 of LEL

Output

Relay output for shutoff valve

Options

Adjustable Output Voltage

* Specifications may vary by model. Contact us for detailed datasheets.

BUYER'S GUIDE

Standard vs Relay Output Models

STANDARD

FB-365 · FB-370 · COB-380V

Audio + visual alarm only

Standalone safety device

Best for single-point monitoring

Best for: Home kitchens, small restaurants, single-room installations

RELAY OUTPUT

FB-365R · FB-370R

Audio + visual alarm (same as standard)

Relay contact for system integration

Connects to controller for automatic shutoff

Best for integrated safety systems

Best for: Multi-zone systems, commercial kitchens, complete integrated setups

SELECTION GUIDE

How to Choose the Right Detector

Where will you install?

Home KitchenRestaurantIndustrial Site

What gas do you need to detect?

LPGNatural Gas (LNG)Carbon Monoxide (CO)

Power preference?

AC Power (plug-in)DC 12V (hardwired)DC 24V (industrial)

Need automatic shutoff?

Yes - integrate with valveNo - standalone alarm

Based on typical residential setup: We recommend starting with the FB-365R (relay output) paired with the FC-531R controller and GD-703 shutoff valve for a complete integrated system.

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Frequently Asked Questions

COMPLETE YOUR SYSTEM

Build a Complete Safety System

STEP 1

DETECT

Gas Leak Detector

FB-365R or FB-370R

Senses gas leak and triggers alarm signal

STEP 2

CONTROL

Gas Detection ControllerNEW

FC-531R

Receives signal and activates shutoff sequence

STEP 3

SHUTOFF

Automatic Shutoff Valve

GD-703 / GD-704 / GD-705

Immediately stops gas supply within 15 seconds

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