Gold Member Since 2013
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Shenzhen Safety Electronic Technology Co., Ltd.

Water Leakage Detector, Machine Water Leak Detector, Water Leak Detector manufacturer / supplier in China, offering New Low Price Water Sensor Alarm Sfl-201, Gas Leakage Detector with Valve for Smart Home Security System, Smoke Sensor for Home Security Alarm System and so on.

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Supplier Homepage Product Water Leak Detector New Low Price Water Sensor Alarm Sfl-201

New Low Price Water Sensor Alarm Sfl-201

Purchase Qty.:
10-99 100-999 1,000-4,999 5,000+
FOB Unit Price: US $9.8 US $9.5 US $8.5 US $7.5
Purchase Qty. (Pieces) FOB Unit Price
10-99 US $9.8
100-999 US $9.5
1,000-4,999 US $8.5
5,000+ US $7.5
Get Latest Price
Port: Shenzhen, China
Production Capacity: 50000 PCS/Month
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: SFL-201
  • Signal Transmission: Wired Alarm
  • Application: Indoor
  • Working Principle: Electro-Optical Type
  • Alarm Volume (within 1m): ≥80dB
  • Usage: Personal, Auto
  • Working Power Supply: 12V DC
  • Alarm Power Consumption: 0.5W
  • Working Humidity: 20% 100%Rh
  • Dimension: 82*52*36 mm
  • Warranty: 18 Months
  • Transport Package: Neutral Box/ Customized
  • Origin: Shenzhen, China
  • Type: Home Alarm
  • Working Mode: Passive
  • Sensor Type: Electric Alarm
  • Transmission Mode: Cable
  • Receive Frequency: 315/433MHz
  • Model: Sfl-201
  • Output Type Relay (Load Current 30mA) Re: N.C. \ N.O. Optional
  • Operating Humidity: 20% Rh or ~~ 100 % Rh
  • Working Temperature: 0~50ºC
  • Alarm Output: Relay Output Nc/No Optional
  • Trademark: SFL
  • Specification: 166g
  • HS Code: 8531100000
Product Description
New Low price water sensor alarm

1,Working Principle

The Water leak detector's main electrode layer with separation, it will alarm when the water reaches a certain height. And it can choose to increase the detection range with auxiliary electrode.


1. Plastic shell, high sensitivity, fast response time, and correct report of optical isolation transformer isolation, safe and reliable
2. Integrated fully sealed design, safety, ease of use
3. The main electrode with isolation layer. It will alarm When the water reaches a certain height
4. An optional auxiliary electrode


1.high sensitivity,fast response,no false alarm

2.adopt to optical isolation and transformer isolation

3.the main electrode with a separation layer,it will alarm when the water district reached a certain height,and it can also choose to increase the detection range with auxiliary electrode.


1. the flooding adapter humidity sensitive film parallel fixed at a region to be detected.

2.the power is turned on.


The right amount of water in the vessel, so that the sensor moisture sensitive film to touch the water, the power, switch the output impedance should be less than 50 ohms.


1. the installation should be away from chemical corrosion environment;

2. the transmitter and the wire should stay away from high-voltage, heat, etc.;

3. the electrical cable should be sheathed cable, waterproof connector better to play a role;

4.non-professionals may not remove the cover or change the circuit, or peril.

Technical Parameters
Working Volt12V DC
Working Temperature0~50ºC
Working Humidity20% 100%RH
Alarm Output:relay outputNC/NO optional
Detecting Cablecable-point sensor to detect the distribution of points.10cm

Home use, library, resturant, museum, bank, printing house or place where need to be waterproof.

Product Front view                                                                

New Low Price Water Sensor Alarm Sfl-201
 Side view                                                                
New Low Price Water Sensor Alarm Sfl-201

Trade Terms & Delivery

1. Payment details:
30% deposit, 70% balance before shipment; L/C, T/T & western union optional
2. Minimum Order: 10 PCS(accept trial order)
3. Delivery Details: 
    3 working days for sample order
    5-7 working days for general order
   10-15 working days for big order
4. Packaging Detail: Neutral box/ Customized
5. Deliver by Air/Sea or Express accordingly
6. Discount are offered based on order quantity
7. Warranty: 18 months

Our service

1. Your inquiry related to our products or prices will be replied in 12 hours
2. Well-trained and experienced staffs to answer all your enquires in fluent English
3. OEM&ODM, any your customized products we can help you to design and put into production
4. Protection of your sales area, ideas of design and all your private information
5. Please contact us without any delay. Many thanks.

Company Profile
Shenzhen Safety Electronic Technology Co., Ltd. was established in 2004, and is a high-tech private enterprise specializing in the research, development, manufacture, sale and service of security alarm series products.

Our company always adheres to the business principle of "good faith to win customers, good quality to catch market". Now we have set up offices in more than 20 provinces in China, and we also set up our branch company in Hong Kong named Safety Electronic Technology (HK) Co., Ltd., which is convenient for developing overseas markets. The products sell well in China Mainland, Hong Kong, the United States, Canada, Africa, Europe, the Middle East, India, Thailand, Malaysia and many other countries and regions.

Over the years, our company has been adhering to scientific and technological innovation. We are dedicated to new product development, improve the absorption of advanced technological process, and establish a perfect quality assurance system to become a leader in security industry.

The products we produced include smoke detector series, gas detector series, PIR detector series, magnetic series, panic buttons, sirens/strobes, active IR beams and alarm systems.

Factory Images

Warehouse & Workshop:                                                 
New Low Price Water Sensor Alarm Sfl-201
Production workshop                                                         
New Low Price Water Sensor Alarm Sfl-201
Exhibition & Sample Room                                               
New Low Price Water Sensor Alarm Sfl-201

We also supply

Wired Alarm SystemWireless Alarm SystemGSM Alarm SystemSmoke Detector
Glassbreak DetectorVibration DetectorWired Flooding DetectorMagnetic Switch 
Household Gas Leak AlarmGas Solenoid ValveDual Passive Infrared DetectorCurtatain-Style Passive Infrared Detector
Active Infrared BeamsWireless Door SensorPush-pull Type Remote ControllerPanic Button

New Low Price Water Sensor Alarm Sfl-201

How to contact us                                                      
Add:A Building,Zhangge Technopark,Dafu Industrial Area,Guanlan,Longhua New District,Shenzhen,China
Alibaba WEB:https//

OEM & ODM order available

Please enjoy our website, call or email us with any needs. Our professional sales team will always be there to assist you to enjoy the purchase. Any of your suggestional will be meaningful to us.

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