- Place of Origin:
 - Guangdong, China
 
- Brand Name:
 - SUMRING
 
- Model Number:
 - SR-820PHWR-AC
 
- Operating voltage:
 - AC110/220V(9V backup battery)
 
- Interconnection:
 - Install within the radius of 200 m
 
- Hush function:
 - YES
 
- Code form:
 - 2262/1527
 
- Sending frequency:
 - 433MHz/315MHz
 
- Radio distance:
 - 200 m(open area)
 
- Sensitivity:
 - 2.06%ft±1.3%ft
 
- Sound level:
 - 85dB/3m
 
- Installation:
 - Wallor Ceiling mounted
 
- Working environment:
 - -10℃~+50℃(≤95%RH No congelation)
 
- Supply Ability:
 - 100000 Piece/Pieces per Month
 
- Packaging Details
 - netural color box
 
- Lead Time:
 Quantity(Pieces) 1 - 500 >500 Est. Time(days) 15 To be negotiated 
Cheap industri Wireless connected network standalone 220v smoke detector with output relay
Main Features:
Wired or wireless interconnection function
Wireless network function
Auto-check malfunction
Infrared photoelectric sensor
MCU processing, eliminate false alarm
Photoelectric sensing technology
Dustproof, mothproof, anti-light interference design
Hush function
Lower battery indication
Execute criterion: EN14606; UL217
Technical specification
| Model No. | SR-820PHWR-AC | 
| Operating voltage | AC110/220V(9V backup battery) | 
| Interconnection | Install within the radius of 200 m | 
| Hush function | YES | 
| Code form | 2262/1527 | 
| Sending frequency | 433MHz/315MHz | 
| Radio distance | 200 m(open area) | 
| 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:
 




Q1:Are you manufacture or trading company?
A1:We are a professional manufacture specialize in fire alarm products.
Q2:What is the moq?
A2:As usual,there is ready stock for our regular & hot selling models.
So any order quantity is welcome.
Q3:Can I customize LOGO and customized functions?
A3:Yes you can. Packaging, products, instructions can be printed logo. and functions we have professional R&D team to support best service.
Q4:How about the quality of your products?
A4:Our raw materials are purchased from qualified suppliers.
Q5:How long is the warranty time of the products?
A5: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.

| Delivery Time | |
| Sample order | 1-3 working days | 
| Bulk order | 25-35 working days | 
| Stock order | 7-10 working days | 



