What is the operating voltage range?

The device operates on 12V/24VDC or a wide range of 10.8~33VDC depending on the model.

Is OEM/ODM service available?

Yes, we provide OEM and ODM services with options for full, minor, or flexible customization.

What is the alarm sound level?

The alarm volume is at least 80dB within 1 meter and 85dB at 3 meters.

Conventional Smoke and Heat Detector with Relay Output

Name: Conventional Smoke and Heat Detector with Relay Output
Brand: Ningbo Sentek Electronics Co., Ltd.
SKU: 744074102

Zhejiang, ChinaNingbo Sentek Electronics Co., Ltd.

US$6.60-10.00

100 Pieces

Sample price:US$8.00/piece.Request sample

Product profile

Customization

Available

Type

Smoke Alarm

Signal Transmission

Wireless Alarm

Model NO.

SD119-4H

Certification

CE, En

Application

Indoor

Working Principle

Electro-Optical Type

Transmission Mode

Cable

Alarm Volume (within 1m)

≥80dB

Receive Frequency

Color

White

Weight

130g/Set with Base(9V Battery Included)

Dimensions

102mm(Dia.)*35mm(Ht) with Base

Certificate

UL/En

Humidity

0 to 95% Rh, No Condensation or Icing

Smoke Sensitivity

0.08---0.14dB/M

Battery Availability

18months(Carbon Zinc); 3 Years(Alkaline); 10 Years

Name

Wireless Smoke Detector

Material

ABS

Alarm Sound Level

85 dB/3m

Transport Package

100PCS/Carton

Specification

EN14604

Trademark

Sentek

Origin

Ningbo China

HS Code

8531901000

Production Capacity

100000/Month

Key features

UL and EN Certification: Meets UL268 and EN54-7 standards for reliable fire safety compliance.

Dual Detection Technology: Combines photoelectric smoke detection with heat sensing for comprehensive coverage.

Flexible Relay Output: Offers selectable N/C or N/O relay output with remote LED and auto-reset options.

Wide Voltage Compatibility: Supports 12V/24VDC and 10.8~33VDC input for versatile system integration.

Durable Design: Features a sleek low-profile housing with a durable sensor head requiring no replacement.

Easy Installation: Simple 2-wire or 4-wire model options with straightforward maintenance procedures.

Customization Support: OEM and ODM services available with flexible customization from samples or designs.

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.