How can I test the battery and alarm operation?

The device includes a test button that allows you to verify both battery status and alarm operation.

What are the dimensions and weight of the sensor?

Dimensions are 102mm (dia) x 35mm (ht) with base, and the weight is 130g with base (9V battery included).

What certifications does the product have?

The product is certified with CE and En standards for safety and quality compliance.

Fire Smoke Sensor Detector Alarm Sk-50

Name: Fire Smoke Sensor Detector Alarm Sk-50
Brand: Ningbo Sentek Electronics Co., Ltd.
SKU: 743505342

Zhejiang, ChinaNingbo Sentek Electronics Co., Ltd.

US$3.80

100-499 Pieces

US$3.00

500-999 Pieces

US$2.70

1,000+ Pieces

Sample price:US$5.00/piece.Request sample

Product profile

Customization

Available

Type

Smoke Alarm

Signal Transmission

Wireless Alarm

Model NO.

SK-50

Certification

CE, En

Application

Indoor

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

Fire Smoke Sensor Detector Alarm

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

10-Year Limited Warranty: Comprehensive coverage for mechanical defects with a ten-year limited warranty period.

Photoelectric Sensing Tech: Advanced photoelectric sensing technology ensures accurate smoke detection and low false alarms.

Low Battery Warning: Built-in low-battery warning feature alerts users to replace batteries before power failure.

High Alarm Sound Level: Produces a loud alarm signal exceeding 85dB at 3 meters for effective emergency notification.

Long Battery Life Options: Supports 18 months (Carbon Zinc), 3 years (Alkaline), or 10 years (Lithium) battery availability.

Easy Battery Replacement: Battery case located at the back of the detector for convenient and easy battery removal.

Reliable SMD Circuit Board: SMD circuit board design guarantees satisfactory quality and long-term operational reliability.

CE and En Certified: Product holds CE and En certifications, ensuring compliance with international safety standards.

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.