What are the payment terms?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

What is the static current consumption?

The static current is 12mA for NC (Normally Closed) and 500uA for NO (Normally Open).

Wholesale 4 Wire Conventional Optical Smoke and Fire Sensor/Detector

Name: Wholesale 4 Wire Conventional Optical Smoke and Fire Sensor/Detector
Brand: Shenzhen Sumring Technology Co., Limited
SKU: 830972495

Guangdong, ChinaShenzhen Sumring Technology Co., Limited

US$4.90-6.62

100 Pieces

Sample price:US$5.80/piece.Request sample

Product profile

Customization

Available

Color

White

Certificate

Ce Approval

Model NO.

SR-802PC-4

Operating Voltage

DC9~35V

Static Current

12mA(Nc);500ua(No)

Alarm Current

10mA(Nc);18mA(No)

Sensitivity

0.5dB/M(±0.01dB/M)

Alarm Output

Relay Output

Installation

Ceiling Mounted

Dimension

104*49mm

Sensor

Wholesale 4 Wire Conventional Optical Smoke and Fi

Transport Package

Carton

Specification

ABS

Trademark

SUMRING

Origin

China

HS Code

8531901000

Production Capacity

50000 PCS/Month

Key features

Advanced Infrared Sensor: Utilizes infrared photoelectric sensor with MCU processing to effectively eliminate false alarms.

High Stability Design: Features SMT manufacture technology, dustproof, mothproof, and anti-light interference design.

EMI Protection: Equipped with stainless steel shield providing anti-RFI protection up to 20V/m-1GHz.

Global Certifications: Complies with UL268, GB4715, and EN54-7 standards for reliable performance.

Wide Voltage Input: Supports non-polar DC9~35V power supply input for flexible installation.

Relay Alarm Output: Provides clear relay output for seamless integration with fire alarm systems.

Customization Support: OEM and ODM services available to meet specific brand and design requirements.

Compact Dimensions: Slim design measuring 100*48mm, suitable for ceiling mounting in various spaces.

Company profile

Shenzhen Sumring Technology Co., Limited

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2006-06-01 CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤9.24h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryShenzhen Sumring Technology Co., Limited is a China-based limited company in Shenzhen that is identified as both a trading company and manufacturer/factory. It offers fire alarm, security, detection, and smart-home products, operates four production lines, and reports export activity since 2006 with broad international markets and 90% of sales from exports. The supplier reports ISO 9001 and ISO 14001 certifications, 11–20 years of R&D engineer experience, and 21–30 quality-control staff. Its stated lead time is within 15 working days during off-peak periods and one month during peak periods. Evidence supports production experience, export capability, quality-system certification, and R&D resources. However, the provided information does not sufficiently establish after-sales procedures, customization services, detailed customer cases, or overall financial credibility.

Supplier typeThe supplier is described as a trade company in its basic information and as both a trading company and manufacturer/factory in its business-entity classification. Its legal name, Shenzhen location, and listed products are consistently identified, indicating a China-based supplier with both trading and manufacturing roles.

CertificationsThe supplier explicitly reports holding ISO 9001 and ISO 14001 management-system certifications. These certifications provide direct evidence of formal quality and environmental management systems, although no certificate numbers, issuing bodies, or validity dates are provided.

R&D capabilityThe supplier describes itself as operating in a high-tech industry, reports 11–20 years of R&D engineer experience, and offers products including Bluetooth modules, smart-home products, detectors, and fire-alarm equipment. This supports the existence of relevant R&D resources and technology-oriented products, but no specific patents, new-product record, or development projects are provided.

Production capacityThe supplier is classified as a manufacturer/factory, operates four production lines, and reports 21–30 quality-control staff. It also states an off-peak lead time of within 15 working days and a peak-season fulfillment time of one month, providing direct evidence of organized production and quality-control capacity.