What type of batteries does it use?

It operates on 3*1.5V AA batteries (3 AA 1.5V), but the batteries are not included.

Battery Operated Combination Carbon Monoxide and Smoke Alarm with Ce LCD Display

Name: Battery Operated Combination Carbon Monoxide and Smoke Alarm with Ce LCD Display
Brand: Shenzhen Sumring Technology Co., Limited
SKU: 884717015

Guangdong, ChinaShenzhen Sumring Technology Co., Limited

US$9.00

100 Pieces

Sample price:US$9.00/piece.Request sample

Product profile

Customization

Available

Type

Smoke Co Detector

Certification

CE, ISO, RoHS

Model NO.

SR-821THS

Application

Indoor

Alarm Volume (within 1m)

≥80dB

Transport Package

Carton

Specification

104*39mm

Trademark

SUMRING/OEM

Origin

China

HS Code

8531901000

Production Capacity

50000 PCS/Month

Key features

Dual Sensor Technology: Combines electrochemical CO sensor and infrared photoelectric smoke sensor for accurate detection.

High Stability & Low Power: Adopts micro-processing control with low power consumption and small sensitivity drift.

LCD Display with PPM: Features a CE LCD display showing carbon monoxide concentration from 000 to 999 PPM.

Battery Operated Design: Powered by 3*1.5V AA batteries with low battery alarm and quiescent current less than 80uA.

Professional OEM/ODM: Supports customized logo, packaging, and functions with professional R&D team support.

Certified Quality: Products certified with CE, ISO, and RoHS standards for safety and reliability.

Wide Application Range: Suitable for indoor use in places prone to carbon monoxide leakage and fire risks.

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: ≤10.30h 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.

Product Q&A

Q:Are you a manufacturer or trading company?

We are a professional manufacturer specializing in fire alarm products.

Q:What is the minimum order quantity (MOQ)?

As usual, there is ready stock for our regular and hot-selling models, so any order quantity is welcome.

Q:Can I customize the logo and functions?

Yes, you can. Packaging, products, and instructions can be printed with your logo. For functions, we have a professional R&D team to support the best service.

Q:How is the quality of your products?

Our raw materials are purchased from qualified suppliers to ensure high quality.

Q:How long is the warranty period?

The warranty period is 2 years from the factory. If there are individual quality problems, we will replenish the customer in the next batch of orders.