What is the alarm volume?

The alarm volume is at least 80dB within a 1-meter range.

Does the sensor require replacement?

No, the sensor head is designed to be durable and does not need replacement.

What are the available wiring options?

We offer 2-wire and 4-wire models, including options with remote LED output and auto-reset functions.

Conventional Photoelectric Smoke Fire Sensor

Name: Conventional Photoelectric Smoke Fire Sensor
Brand: Ningbo Sentek Electronics Co., Ltd.
SKU: 750114392

Zhejiang, ChinaNingbo Sentek Electronics Co., Ltd.

US$4.80-8.00

100 Pieces

Sample price:US$6.00/piece.Request sample

Product profile

Customization

Available

Type

Smoke Alarm

Signal Transmission

Wired Alarm

Model NO.

SD388-2

Working Mode

Active

Certification

Application

Indoor

Working Principle

Electro-Optical Type

Transmission Mode

Cable

Alarm Volume (within 1m)

≥80dB

Receive Frequency

Color

White

Weight

120g/Set with Base

Dimensions

102mm(Dia.)*43mm(Ht) with Base

Certificate

UL/En

Ceiling Spacing

50 Foot Rating for Heat Sensor

Smoke Sensitivity

0.98--2.40%/FT Obscuration (UL) ; 0.08--0.14 dB/M

Product Name

Photoelectric Smoke Fire Sensor

Transport Package

100PCS/Carton

Specification

102mm (dia) x 43mm (ht) with base

Trademark

Sentek

Origin

Ningbo China

HS Code

8531901000

Production Capacity

100000/Month

Key features

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

Durable Sensor Head: Built with a durable sensor head that requires no replacement during the product life.

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

ISO9001 Certified: Manufactured under ISO9001:2015 management system certification ensuring quality control.

Auto-Reset Function: Optional auto-reset function available for 4-wire models to enhance security system reliability.

360-Degree Visibility: Equipped with two LEDs providing a 360-degree visual angle for clear status indication.

Low-Profile Design: Polished low-profile housing design ensures easy installation and aesthetic appeal.

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.