Powered by Made-in-China.com
High Quality Best Sell Dual Sensor Smoke Detector and Heat Sensor for Fire Alarm Standalone
US$5.32-5.75
500 Pieces
Sample price:US$1.00/piece.Request sample
Product profile
Customization
AvailableType
Smoke DetectorsAnti-theft Alarm System Approach
PassiveModel NO.
SR-820DHSAnti-Theft Alarm System Type
Smoke AlarmsAnti-Theft Alarm System-Wide
Fire AlarmAnti-Theft Alarm System Distance
Fire AlarmTypes of Smoke Detectors
Photoelectric Smoke StyleInfrared Sensor Probe Type
Optical Smoke DetectorInfrared Sensor Installation
CeilingCombustible Gas Detector Model
NoneColor
WhiteCertificate
Ce ApprovalType for System
StandaloneName
High Temperature Photoelectric 9V Battery OperatedDimension
124mm(Dia)*40mm(HS)Horn Output
85dB at 10FTOperating Voltage
9V BatteryTemperature Range
-10℃~+70℃Humidity Range
5%~95% Relative Humidity (Rh)Alarm Temperature
57℃(135℉)Transport Package
CartonSpecification
ABSTrademark
SUMRINGOrigin
ChinaHS Code
8531901000Production Capacity
50000 PCS/MonthKey features
Dual Sensor Technology: Combines photoelectric smoke detection with fixed rate temperature sensing for enhanced safety.
Dual Power Options: Operates on 9V battery or AC power for flexible installation and backup reliability.
Comprehensive Certifications: Complies with BS EN54-4 and UL539 standards ensuring global safety compliance.
Interconnect Capability: Allows multiple units to link together for a synchronized fire alarm system.
Low Battery Warning: Provides early notification to replace batteries before the unit becomes ineffective.
Instant Test Function: Features a dedicated button for immediate system functionality verification.
OEM/ODM Services: Custom logo printing and manufacturing services available upon contact.
2-Year Warranty: Covers individual quality problems with replenishment in the next batch of orders.
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: ≤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:Can I get one sample for test before big order?
A:
Sure,you can. Please leave a message we will contact you soon.
Q:Can I get the item less than MOQ?
A:
Yes, you can and the final price will depend on your quantity.
Q:Can I print my logo on the item?
A:
Yes, please contact us.
Q:What's the lead time when I place order?
A:
Small Qty order needs5-7 working days, big Qty order usually needs 7-20 working days after payments arriving. That's depends on order Qty.
Q:How long is your products quality warranty?
A:
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
Send Inquiry
*To:
Shenzhen Sumring Technology Co., Limited
Shenzhen Sumring Technology Co., Limited*Content:
Supplier replies will be sent to your registered email
You may also like
Smoke Sensor Heat Detector for Fire Alarm& Fire Fire Suppression System
US$6.20-8.20
1 Piece(MOQ)
Independent Portable Sound and Light Smoke Sensor for Shopping Malls
US$2.90-3.50
1 Piece(MOQ)
Smoke Detector Battery Operated Smoke Sensor for Fire Alarm System
US$4.50-5.00
100 Pieces(MOQ)
UL 2 Wire 4 Wire Smoke Detector Sensor for Home Security System
US$9.00-15.00
100 Pieces(MOQ)
Addressable Smoke Sensor Host for Fire Alarm Security
US$310.00-350.00
1 Piece(MOQ)
Reflective Beam Smoke Alarm Durability and Highly Sensitive Sensor for Commercial Buildings
US$165.00-185.00
2 Pieces(MOQ)
Replaceable Battery Smoke Alert Smoke Detector and Carbon Monoxide Fire Alarm Sensor
US$3.00
500 Pieces(MOQ)
High Quality Conventional Fire Alarm Smoke Detector Smoke Sensors for Fire Safety
US$6.50-7.50
1,000 Pieces(MOQ)
24V Smoke and Temperature Detector Fire Alarm Smoke Sensor
US$9.00-10.00
1 Piece(MOQ)
DC24V Fire Alarm Photoelectric Heat Sensor for Fire Rolling Shutter
US$6.90-8.90
100 Pieces(MOQ)
Conventional Smoke&Heat Sensor for Smart Home Security System
US$7.20-8.90
1 Piece(MOQ)
12V/24V 2 Wire Fire Fighting for Fire Alarm Heat Sensor Detection
US$6.90-8.90
100 Pieces(MOQ)



















