Gold Member Since 2012
Audited Supplier
Ningbo Ambest Electronics Co., Ltd.

Water Alarm, Water Detector, Water Leakage Alarm manufacturer / supplier in China, offering Residential Water Leakage Alarm, 9V, State of The Art Fire Alarm Control System, 1 Loop (6001-01), Big Infrastructure Fire Project Fire Alarm Control System, 2 Loop (6001-02) and so on.

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Residential Water Leakage Alarm, 9V

FOB Price: US $5.5-10.15 / Piece
Min. Order: 300 Pieces
Min. Order FOB Price
300 Pieces US $5.5-10.15/ Piece
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Production Capacity: 10, 000 PCS/Month
Transport Package: 1/Box, 100PCS/CTN
Payment Terms: L/C, T/T, D/P, Paypal, Western Union

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Basic Info
  • Model NO.: 204
  • Signal Transmission: Wireless Alarm
  • Certification: CE, ISO
  • Sensor Type: Electric Alarm
  • Transmission Mode: Wireless
  • Usage: Door, Window, Fire, Smoke
  • Trademark: Numens
  • Origin: Ningbo, China
  • Type: Home Alarm
  • Working Mode: Active
  • Application: Indoor
  • Working Principle: Electro-Acoustic Style
  • Alarm Volume (within 1m): ≥90dB
  • Power: Battery 9V
  • Specification: CE
  • HS Code: 8531100000
Product Description

The 204 water alarm is a water leakage detector with an alarm sounder. Advanced electronics provides rapid detection of water in at-risk locations, such as sumps, under sinks, around washing machines, in bathrooms, etc.
The 204 is powered from an internal battery. A dry-contact alarm relay output is available for connection to other equipment, such as a security system.

  • Operates in water depths exceeding 2 mm
  • Operates from a replaceable DC 9 V battery
  • Low power consumption
  • Loud 85 dB internal alarm sounder lasts for up to 72 hours
  • Sounder will reset automatically when water is no longer detected
  • Dry-contact relay output model available for connection to other equipment, such as a security system, available on some models
  • Interconnection function available on some models to connect up to 38 units together
  • Shock resistant from up to 1.8 m fall onto concrete
  • Splash proof (not water proof)
  • Easy installation. No programming required

Residential Water Leakage Alarm, 9V


Power sourceDC 9 V
Quiescent currentµA
Alarm response threshold3 mm water depth
Audible alarm sounder output≥ 85 dB @ 3 m
Visual alarm indicatorFlashing red LED
Number of interconnected units38
Output relaySPDT. N/O or N/C
Low battery signalAudible signal each 32 s for 30 days
Operating temperature(-10 ~ +50) °C
Operating humidity(0 ~ 95) % RH, non-condensing
Dimensions (h × w × d)(100 × 62 × 40) mm

Ordering information

Part NumberCarbon Zinc BatteryLithium-Ion BatteryInterconnectRelay Output
204-001    ---
204-002-    --
204-003    -    -
204-004-        -
204-005    --   
204-006-    -   

About Numens

Formed in 2010, Numens is an emerging supplier of professional safety products for fire detection and alarm systems. Numens supplies an extensive range of addressable, non-addressable and residential products for life safety and property protection applications. Offering over 150 products and supplying to more than 100 customers around the globe, we are committed to establishing long-term relationships with our customers and suppliers.

Mission and Values
Our mission is to provide building owners with high quality, inexpensive fire detection and related equipment that will protect lives of building occupants and minimize damage to buildings through early detection and warning of a fire emergency.
Our engineers, production and support staff will design, manufacture and deliver products with performance and quality to always delight our customers.
Success in our future depends on the integrity and ethical behaviour of all our employees. We support and nourish our staff to improve and grow as responsible members of a civil society. We take personal responsibility for our actions and respect others with different views, as we continually strive for improvements for our customers, our company and ourselves.

Sales, engineering and production are located in Ningbo, China; just 2 hours south of Shanghai. Our Ningbo site has 10,000 m2 (100,000 ft2) of floor-space. From product concept, electrical and mechanical design, we can provide the solutions to detection needs. Our manufacturing is vertically integrated, with our capabilities including tool-making, plastic injection moulding, SMT manufacturing, and final assembly and test.
You can view our product range on our website or in our product catalogue (document number 34-0001).

Standards and Approvals
Standards approvals are important to us, giving customers additional confidence of the performance and reliability of our products. We are certified to ISO 9001:2008 and our products carry approvals to major European and North American Standards.


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