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433MHz Smoke Detector Wireless Interconnected Smoke Alarm
US$8.90
1-99 Pieces
US$8.60
100-499 Pieces
US$8.20
500-999 Pieces
US$7.90
1,000+ Pieces
Sample price:US$1.00/piece.Request sample
Product profile
Customization
AvailableType
Smoke AlarmSignal Transmission
Wireless AlarmModel NO.
SR-820DHRWorking Mode
ActiveCertification
CE, ISO, RoHSWorking Principle
ElectromagneticTransmission Mode
WirelessAlarm Volume (within 1m)
≥80dBReceive Frequency
433/315MHzName
Smoke and Heat DetectorAlarm Indication
LED Flashes in RedRadio Frequency
433MHz/315MHzCode Form
2262 CodeRadio Transmitting Distance
200m(Open Area)Colour
WhiteVolume
128mm*38mmPower Supply
9V BatteryForm
CircleOperating Temperature
-10~+50 Degree CentigradeCertificate
CE/ISOType for System
WirelessTransport Package
CartonSpecification
ABSTrademark
SUMRINGOrigin
ChinaHS Code
8531100000Production Capacity
50000Key features
Dual Sensor Technology: Combines heat sensor and infrared photoelectronic smoke sensor for accurate detection.
Wide Detection Area: Covers 80 sqm at 6-12m height or 60 sqm at lower installation heights.
Robust Interference Resistance: Features anti-RF interference (20V/m-1GHz) and anti-white light interference.
Multiple Certifications: Complies with CE, ISO, RoHS, EN54-11, UL539, EN14604, and UL217 standards.
Wireless Connectivity: Supports 315MHz/433MHz wireless transmission with up to 200m range in open areas.
Smart Self-Check: Includes malfunction auto-check and auto-reset capabilities after triggering.
Durable Design: Dust-proof, moisture-proof, and built with reliable SMT manufacturing technology.
Company profile
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: ≤8.31h 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:What is the detection area coverage?
A:
The detector covers 80 square meters at an installation height of 6-12 meters, and 60 square meters at heights less than 6 meters.
Q:What certifications does the product have?
A:
The product is certified with CE, ISO, RoHS, EN54-11, UL539, EN14604, and UL217.
Q:How loud is the alarm sound?
A:
The alarm volume is at least 85dB at a distance of 3 meters.
Q:What is the wireless transmission range?
A:
The radio transmitting distance is up to 200 meters in an open area.
Q:What power supply does the detector use?
A:
It uses a 9V battery, which is included with the product.
Send Inquiry
*To:Shenzhen Sumring Technology Co., Limited
Shenzhen Sumring Technology Co., Limited*Content:
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