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Product Details
Hot Sale Relay Output Optical Photo Smoke Detector
Photoelectric Smoke & Heat Alarm
SR-820D Series
SR-820DHS Independent Photoelectric smoke & heat alarm
SR-820DHM-AC Wireless interconnected photoelectric smoke &heat alarm
SR-820DHR Wireless photoelectric smoke &heat alarm
SR-820DHW-AC Wireless interconnection photoelectric smoke &heat alarm
Main Features:
Battery operated or AC power with backup battery
Photoelectric sensing technology
Lower battery indication
Loud 85dB audio alarm
Instant test button
MCU processing
Test and hush button
Interconnection function
57℃(135℉)fixed temperature alarm
Execute criterion: EN54-4,UL539,EN14606; UL217
Technical specification:
Model No. | SR-820DHS | SR-820DHM-AC | SR-820DHR | SR-820DHW-AC |
Operating voltage | 9V battery | AC110/220V(9V backup battery) | 9V battery | AC110/220V(9V backup battery) |
Interconnection | N/A | Up to 40 pc smoke detectors | N/A | Install within the radius of 200 m |
Code form | N/A | N/A | 2262/1527 | 2262 |
Sending frequency | N/A | N/A | 433MHz | 433MHz |
Radio distance | N/A | N/A | 200 m(open area) | 200 m(open area) |
Alarm temperature | 57℃ | |||
Sensitivity | 2.06%ft±1.3%ft | |||
Sound level | 85dB/3m | |||
Installation | Wall or Ceiling mounted | |||
Working environment | -10℃~+50℃(≤95%RH No congelation) | |||
Dimension | 128*38mm | |||
Product Pictures
Shenzhen SUMRING Technology Co. Ltd is a Hi-tech enterprise specialized in the research &
development of fire alarm and security products, including Fire alarm control panel, smoke
detector,heat detector,gas detector, motion detector, fire alarm bell/strobe siren,
manual call point, magnetic contact, emergency exit etc.
SUMRING implements ISO9001 standard management, and every year invested 20% of earned
into Research & development.Our conventional detectors and fire alarm accessory can be connected
with other brand of conventional fire alarm control panel such as Honeywell, System sensor,Siemens,
Apollo and Hochiki etc.. It helps client reduce cost and enhance competition,and with our corresponding
monthly output ups to one million pieces, annual turnover ups to
USD 6,000,000.
SUMRING continuously follows the trend of global advanced fire alarm and security product
development, and has built long-term partnership with well-known manufacturer,aiming to be
top enterprise in fire alarm & security product. High-tech industry, good-quality products and
high-level are our commitments to customers. Our products are widely exported to USA, Spain,
Italy, Portugal,South Africa, South east Asia, and Middle East.
Our Certifications
Packaging information
Shipping information
* Express(UPS, DHL, Fedex, EMS, etc) is available.
* Sea and Air delivery is available
* welcome your agent to deal with our products .
Fax: 86- 755-89571207
skype :cnsumring03
TradeManager:sumring
Website: http://www.sumring.com
Inquiry now, we will reply you upon receive your email !
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