What are the available power supply voltages?

The 4-wire models support 12V, 24V, and 48V DC power supplies.

Is the device suitable for high humidity environments?

Yes, it can operate in humidity levels from 0 to 95% RH without condensation or icing.

What certifications does this product hold?

The product is certified under UL/EN and CE standards.

4 Wire Photoelectric Conventional Smoke Alarm with Auto-Reset SD119-4ar

Name: 4 Wire Photoelectric Conventional Smoke Alarm with Auto-Reset SD119-4ar
Brand: Ningbo Sentek Electronics Co., Ltd.
SKU: 2073415872

Zhejiang, ChinaNingbo Sentek Electronics Co., Ltd.

US$7.10

100-999 Pieces

US$6.40

1,000-1,999 Pieces

US$6.35

2,000+ Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Type

Smoke Detector

Sensor

Photoelectric

Fire

Detector

Output

Relay or Current

Color

White

Transport Package

Box/Certon

Specification

UL and EN54

Trademark

Sentek

Origin

China

HS Code

85311000

Production Capacity

10000

Key features

Advanced Detection Algorithms: Features advanced detection and discrimination algorithms for accurate smoke sensing.

Auto-Reset Function: Includes auto-reset capability for security systems, available in 4-wire models.

Durable Sensor Head: Built with a durable sensor head that requires no replacement over time.

Sleek Low-Profile Design: Features a sleek, low-profile housing design for easy installation and maintenance.

Five-Year Warranty: Comes with a comprehensive five-year warranty for peace of mind.

Flexible Output Options: Offers N/C and N/O relay output options with remote LED availability.

OEM and ODM Services: Provides full customization, minor customization, and flexible customization options.

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.