What colors are available?

The sensor is available in White, Tan, or Brown.

Does it support low battery warnings?

Yes, the system includes alarm alert and low battery warning features.

What is the minimum gap for the magnet?

The reed switch requires a minimum gap of 0.625 inches (1.59 cm) and works typically at 1 inch (25 cm).

Smart Home Plastic Wireless Door Window Magnetic Contact Sensor

Name: Smart Home Plastic Wireless Door Window Magnetic Contact Sensor
Brand: Ningbo Sentek Electronics Co., Ltd.
SKU: 743291872

Zhejiang, ChinaNingbo Sentek Electronics Co., Ltd.

US$13.00

100-499 Pieces

US$11.00

500-999 Pieces

US$9.50

1,000-4,999 Pieces

US$8.20

5,000-9,999 Pieces

US$7.50

10,000+ Pieces

Sample price:US$15.00/piece.Request sample

Product profile

Customization

Available

Type

Application

Burglar Alarm System

Model NO.

WC20-D

Sensor Dimensions (Hxd)

2.50 X 0.75 in. (6.37 X 1.9 Cm)

Magnet Dimensions (Hxd)

0.51 X 0.75 in. (1.3 X 1.9 Cm)

Weight

1.25 Oz. (37 G) (Including Battery and Magnet

Color

White, Tan or Brown

Transmitter Frequency

345MHz , 319.5MHz , 433.9MHz

Installation

Screw Mount or Press Fit

Product Name

Wireless Door Window Magnetic Contact Sensor

Trademark

Sentek

Key features

6-Year Battery Life: Uses replaceable CR2 lithium battery lasting 6 years under normal usage.

Ultra-Long Wireless Range: Achieves up to 450 ft. wireless signal range in open air with compatible panels.

Recessed Installation Design: Allows hiding transmitter within door or window frame for discreet monitoring.

2-Year Limited Warranty: Covers mechanical defects with a comprehensive 2-year limited warranty period.

Multiple Frequency Options: Available in 345MHz, 319.5MHz, and 433.9MHz to match various control panels.

Low Power Consumption: Features ultra-low current consumption of less than 3uA quiescent current.

High Security Code Capacity: Offers over one million unique ID code combinations to prevent interference.

Flexible Color Selection: Available in White, Tan, or Brown to match various interior decors.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceManagement CertificationR&D Capabilities

Ningbo Sentek Electronics Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 19 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤18h

AI-Powered supplier vetting

SummaryThe supplier is a limited company with 148 employees, focused on designing and manufacturing fire alarm and monitoring equipment, security products, smart-home equipment, detectors, sensors, and electronic components. It offers professional R&D, 3D software design, SDK availability, ODM, OEM, and broad customization services. Its products have passed national fire-electronic quality supervision testing and obtained mandatory CCCF certification. Quality and service processes are documented, including complaint handling, corrective and preventive actions, finished-product inspection, and supplier assessment. The supplier has valid manufacturing contracts with associated subcontractors and 12 qualified service-capability suppliers. However, it reports no in-stock capacity, overseas warehouse, or overseas showroom. Export sales account for 90%, with 19 years of export experience, but exports are conducted through an agent. Customer-specific cases are not clearly identified.

Supplier typeThe supplier is identified as a limited company with a combined company type and no stated affiliation with a larger corporate group. Its business scope covers design and manufacture of fire alarm, monitoring, security, smart-home, detector, sensor, and electronic-component products.

CertificationsThe supplier's listed fire alarm products passed qualification testing by the national fire electronic product quality supervision and inspection center. It also completed the required conformity-assessment audit and obtained national mandatory CCCF certification with the CCCF mark.

After-Sales capabilityThe supplier has documented and followed procedures for customer complaints, corrective and preventive actions, supplier-service assessment, and quality assurance. These records support an established service-management process, although the slices do not specify response times, repair coverage, or warranty terms.

R&D capabilityThe supplier is identified as a professional technical supplier with R&D capability, 3D software design services, and an available SDK. It reported new products within the past year and offers ODM services, providing explicit evidence of product-development and technical-design capability.

Production capacityProduction-related controls include valid contracts with associated subcontractors, documented finished-product inspection, quality assurance, and 12 qualified service-capability suppliers. The supplier has 148 employees and states a one-month average lead time in both peak and off seasons, but it has no in-stock capacity, overseas warehouse, or overseas showroom.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. Its R&D offering also includes ODM and OEM services, indicating broad ability to adapt or develop products to customer requirements.