What installation method is supported?

The sensor supports surface mounted installation with included screws and spacers.

What wire gauges are compatible?

The sensor is compatible with wire gauges ranging from #18 to #24 AWG.

Does the package include installation accessories?

Yes, the package includes spacers, a cover, and screws.

UL Wired Magnetic Contact Door Sensor (BS-2031C)

Name: UL Wired Magnetic Contact Door Sensor (BS-2031C)
Brand: Ningbo Sentek Electronics Co., Ltd.
SKU: 699595602

Zhejiang, ChinaNingbo Sentek Electronics Co., Ltd.

US$0.86

1,000-4,999 Pieces

US$0.78

5,000-9,999 Pieces

US$0.70

10,000-29,999 Pieces

US$0.60

30,000+ Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Wires

Two-Wires

Certification

ISO, RoHS, CE, UL

Model NO.

BS-2031C

Material

Plastic

Color

White ,Brown Grey

Wire

#18~#24AWG

Installation

Surface Mounted

Product Name

UL Wired Magnetic Contact Door Sensor

Loop Type

Closed&Open

Reed Form

Spdt

Transport Package

1000PCS/Carton

Specification

2.48"Lx0.75"Wx0.63"H

Trademark

Sentek

Origin

China

HS Code

8531901000

Production Capacity

300, 000 PCS /Month

Key features

Comprehensive Certifications: ISO, RoHS, CE, and UL certified for global safety compliance.

Flexible Customization: Offers full, minor, and flexible customization from samples or designs.

Durable Plastic Construction: Made from high-quality plastic available in White, Brown, or Grey.

Versatile Switch Types: Available in N/O, N/C, and SPDT forms for various circuit needs.

Complete Installation Kit: Includes spacers, cover, and screws for easy surface mounting.

Wide Wire Gauge Options: Supports wire gauges from #18 to #24 AWG for flexible wiring.

Low Contact Resistance: Maximum initial contact resistance of 0.150 Ohm ensures reliability.

OEM and ODM Services: Full OEM and ODM services available with 21 R&D engineers.

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: ≤15h

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.