Gold Member Since 2014
Audited Supplier
Shenzhen Wale Group Co., Ltd.

Sensor, Leak Sensor, Gas Sensor manufacturer / supplier in China, offering Security Alarm Wireless Gas Leak Sensor, Hot Security Product -- GSM/PSTN Dual-Network Security Alarm System, Shenzhen Factory TFT CID Home Wireless Alarm System and so on.

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Security Alarm Wireless Gas Leak Sensor

FOB Price: US $6-6.5 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $6-6.5/ Piece
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Port: Shenzhen, China
Production Capacity: 100000 Sets Per Month
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: WL-938W
  • Conductivity Type: Volume Control Type
  • Production Process: SemiConductor Integrated
  • IP Rating: IP20
  • Certification: CE
  • Response Time: Below 20 Seconds
  • Working Voltage: 220VAC
  • Work Temperature: >-10<+55
  • Application: Home, Industry
  • Trademark: WALE/ OEM
  • Specification: CE, ROHS
  • HS Code: 8531100000
  • Type: Sensor
  • Output Signal Type: Wireless Repeater
  • Material: Plastic
  • Sensitivity: High
  • Customized: Non-Customized
  • Certificated: RoHS/CE Certificated
  • Output: Nc\No or Level Output
  • Installation Mode: Wall Mounted
  • Usage: Gas
  • Transport Package: Color Box
  • Origin: Shenzhen, Guangdong
Product Description
  1. Alarm indicator: Green led flash
  2. Manual test; Auto reset
  3. Detects natural gas, coal gas, LPG
  4. Highly stable semiconductor gas sensor
  5. SMT manufacture technology, high stability
  6. Adopts check malfunction
  7. High capacity relay (0.3A/250V)
  8. RF signal: 433MHz (wireless type)
  9. Execute criterion: GB15322.2-2003
  10. ABS plastic material
  11. Can work with solenoid valve, the fan (WL-938WL/938DL type)
Technical Specification
ModelWL-938W / 938WLWL-938D / 938DL
Model typeWireless/ Wireless Linkage type gas detectorIndependent /Linkage type Independent gas detector
Power supplyAC 220V90V-240V AC
Alarm concentration10%±5%LEL (5000PPM) 
Transmitting distance300m (in open area) 300m (in open area) 
Installation height0.3 to 1.0m, from ceiling/floor0.3 to 1.0m, from ceiling/floor
Sound level≤85dB/m≤85dB/m
Transmitting frequency433MHz/
Detecting area20m2
Programmer code1527/2264/
Standby current     ≤70mA≤70mA
Alarm current≤160mA≤160mA
Operating temperature-10ºC~ +55ºC-10ºC~ +55ºC
Relative humidity≤95% RH (non-condensing)≤95% RH (non-condensing)
Unit size130*68*38mm

Security Alarm Wireless Gas Leak Sensor

Security Alarm Wireless Gas Leak Sensor
Security Alarm Wireless Gas Leak Sensor
Security Alarm Wireless Gas Leak Sensor

Q1: Where is your Factory? How can I visit your company? 
A1: Our factory is located in Shenzhen, Guangdong, China. We could pick you up from the hotel you live when you come to Shenzhen.
Q2:  Warranty?
A2:  Normally it's one year, but it will be 2 years if you can be our agent
Q3: Can I get some Samples? Are your samples free or need cost?
A3: It can be free, but anyway we have to charge for the samples first, the sample charge can be returned after official order placed.
Q4: Could you please make OEM for us?
A4: Surely yes.OEM&ODM, any your customized alarm system we can help you to design and put into product
Q5: How long can I get your samples?
A5: For samples, it will be ready for delivery in 3-7 days after payment. The samples will be sent to you by express.
Q6: When can I get the price?
A6: Your inquiry related to our products or prices will be replied in 24 hours. If you are very urgent to get the price, please call us by 86-17875047736.
Q7: What's your Payment method supported?
A7: We accept T/T, Western Union, L/C etc.
Q8: Shipping & Express
A8: 1). If you have specified shipping agent, we will contact them and to deliver your goods. 
       2) If you do not have specified shipping agent, we will delegate a credible one for you to deliver your goods. Goods could be delivered by air, by sea, by express (DHL, UPS, TNT or FEDEX).
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