Cheap Natural Gas Liquefied Gas Leak Detector Fire Alarm Relay Output (GD518)
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Product Highlights
- Figaro Semiconductor Sensor: Features UL-approved Figaro semiconductor sensor heads for reliable gas detection.
- Loud Alarm Signal: Emits a loud 75dB sound signal with auto-reset capability at 3 meters.
- Dual Gas Detection: Capable of detecting both Natural Gas (NG) and Liquefied Petroleum Gas (LPG).
- Flexible Calibration: Sensitivity can be calibrated to meet UL1484/2075 or EN50194 standards.
- Five-Year Warranty: Includes a comprehensive five-year limited warranty for peace of mind.
- OEM and ODM Services: Offers full customization, minor customization, and flexible customization options.
- Compact Design: Features a sleek low-profile housing with easy installation and maintenance.
- Magnet Test Feature: Equipped with a magnet test feature for convenient system verification.
Product Attributes
- Customization
- Available
- Type
- Smoke Alarm
- Usage
- Gas
- Model NO.
- GD518
- Installation Mode
- Ceiling Mounted
- Certification
- CE
- Application
- Home
- Material
- ABS Plastic
- Color
- White
- Dimensions
- 98mm (Diameter) X 43 mm (Height)
- Weight
- 170g with Base
- Standard
- UL1484/2075 or En50194
- Alarm Horn
- >75dB with Auto-Reset at 3m (10 Feet)
- Transport Package
- box/certon
- Specification
- CE
- Trademark
- Sentek
- Origin
- China
- HS Code
- 85311000
- Production Capacity
- 100
Product Images of Cheap Natural Gas Liquefied Gas Leak Detector Fire Alarm Relay Output (GD518)
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Product Description

Specification:
|
Mode |
Gas Monitored |
2/4 Wire |
Operating Voltage |
Output |
Standby Current 12V /24V |
Alarm Current 12V/24V |
Base Mode |
|
GD518-N |
Natural Gas |
- |
12~24VDC |
- |
90mA / 56mA |
80mA/50mA |
P/N852001 |
|
GD518-L |
Liquefied Gas |
- |
12~24VDC |
- |
90mA / 56mA |
80mA/50mA |
P/N852001 |
|
GD518-NR |
Liquefied Gas |
4 |
12~24VDC |
Relay |
90mA / 56mA |
80mA/50mA |
P/N854001 |
|
GD518-LR |
Liquefied Gas |
4 |
12~24VDC |
Relay |
90mA / 56mA |
80mA/50mA |
P/N854001 |
Order Information:
| Operating Temperature | -10 °C to +50 °C |
| Ambient Humidity | 30%~95%RH |
|
Alarm Horn |
>75db with Auto-reset at 3m(10feet) |
| Power Consumption |
2W |
| Min Gas Level for Alarming |
Less than 10% LEL |
| Relay Rating(if available) | NO or NC operaation,Rating:1.0A@30VDC/0.5A@125VAC(resistive load) |
| Dimensions | 98mm(Diameter) x43mm(Height) |
| Weight | 170g with base |
Cheap Natural Gas Liquefied Gas leak Detector Fire Alarm Relay Output

Product Features:
*Sensiticity can be calibrated into either UL1484/2075 or EN50194 standards
*Figaro semiconductor sensor heads with UL approval for gas detection
*Loud 75db sound signal at alarm mode
*Advanced detection and discrimination algorithms
*Easy installation and maintenance,Sleek low-profile housing design
*SMD circuit board design
*Magnet test feature
*Five-year limited warranty
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Company Information
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR2531332". Items marked "" are certified.
Company Profile
Ningbo Sentek Electronics Co., Ltd. Was founded in November 2005, is located in the beautiful port city of Ningbo, the factory covers an area of more than 10, 000 square meters, is a commitment to research and development and production of security and fire alarm, smart home equipment, proximity sensors and other products as one of the high-tech enterprises.
The company has its own excellent development and management team, with more than 30 management personnel; More than 10 technical engineers, engaged in security and fire alarm product design for many years, has a strong development ability, can meet the different needs of customers.
The company has a very strong production capacity; Monthly production of fire alarms 150, 000, door magnetic switch 350, 000 sets. It has a variety of advanced production testing equipment, such as UL test smoke box, EN test smoke box (AWT, LORENZ), sensitivity automatic setting smoke box, CARBON monoxide gas alarm test box (Siemens core equipment), passive infrared testing equipment, ultrasonic welding machine, laser marking machine, injection molding machine and hardware mold manufacturing equipment.
Shang Tai regards the product quality as the enterprise life, carries on the strict production control and the quality inspection to the product, the production product carries on the 100% sensitivity and the function test. In order to make the products have a more favorable position in the international and domestic market, the designed products are designed and produced according to the specification requirements of their product standards (such as UL268, UL217, EN54, EN14604, 3C, etc. ). A number of products developed and designed by the company have passed the certification of UL, FCC, KFI, NS and EN (LPCB, BSI, INTERTEK, VDS). At present, there are more than 150 types of products and more than 2000 models. Products are exported to all over the world, the company with Europe and the United States, Asia, the Middle East and other different customers established a long-term stable business relations of cooperation.
In order to expand the domestic market, the company acquired Jiangsu Weston Fire equipment Co., Ltd. Weston fire equipment Co., Ltd. is a high-tech cooperative enterprise specializing in the design, development, production, installation and service of fire alarms. Has advanced production testing equipment, its main products JTY GD - 2101 - point type photoelectric smoke fire detector, JTW lh-zd - 2102 - point type heat fire detector, manual fire alarm button J - SA - 2106, JB - TBL - 8100 fire alarm controller (LianDongXing) and so on dozens of products by the national fire electronic product quality supervision and inspection center of qualified, and through the Ministry of Public Security fire product conformity assessment center by CNCA - C18-01: 20 14 "mandatory product certification implementation rules" audit, access to the national mandatory product certification certificate, Use the CCCF certification mark.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- 448 Yingchun Road, Wangchun Industrial Park, Ningbo, Zhejiang, China
-
Plant Area
- 10035.2 square meters
-
Number of Employees
- 148
-
Registered Capital
- 5,190,000 RMB
-
Terms of Payment
- LC, T/T
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: one month -
Nearest Port
- Ningbo Port, Shanghai Port
-
Minimum Order Quantity
- 2000 Pcs
-
Supply Chain Partners
- 12
Our Production Capability & Technical Expertise
-
Main Products
- Smoke Alarm, Smoke Detector, Magnetic Door Contacts
-
Production Lines
- 6
-
Production Machines
- Injection Facility, CNC Facility, Assembling line
-
QA/QC inspectors
- 10 people
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 21 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2005-11-14
-
Export Year
- 19 Years
-
Main Markets
- North America, South America, Europe, Southeast Asia/ Mideast, Africa, East Asia(Japan/ South Korea), Australia
-
Repeat Buyers Choice
- 50%~80%
-
Annual Export Revenue
- 51,679,777.47 RMB
-
Number of Foreign Trading Staff
- 7
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- Yes
Our Certifications, Standards & Industry Recognition
-
Management System Certification
- ISO9001:2015
-
Cooperated with Fortune 500
- No
FAQ
- What types of gas can this detector monitor?
- It can detect both Natural Gas (NG) and Liquefied Petroleum Gas (LPG).
- What is the alarm sound level?
- The alarm horn produces a sound level greater than 75dB with an auto-reset function at 3 meters.
- Does the device support calibration to specific standards?
- Yes, the sensitivity can be calibrated to either UL1484/2075 or EN50194 standards.
- What is the warranty period for this product?
- We provide a five-year limited warranty for this product.
- Is customization available for this product?
- Yes, we offer OEM and ODM services including full customization, minor customization, and flexible customization.
- What are the operating voltage options?
- The device operates on 12V or 24V DC.
- What is the minimum order quantity?
- The minimum order quantity is 2000 pieces.
- What is the lead time for production?
- The average lead time is one month, applicable for both peak and off-peak seasons.
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Product Groups
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- Flame Detector
- Carbon monoxide detector
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- PIR motion sensor
- Wired Reccessed Magnetic Contacts
- Wired Surface Mount Magnetic Contacts
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