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- Place of Origin:
- Guangdong, China
- Brand Name:
- SUMRING
- Model Number:
- SR-820DHS
- Operating voltage:
- 9V battery
- Interconnection:
- N/A
- Lower battery indication:
- yes
- Test and hush button:
- yes
- Alarm temperature:
- 57℃
- Sensitivity:
- 2.06%ft±1.3%ft
- Sound level:
- 85dB/3m
- Installation:
- Wallor Ceiling mounted
- Dimension:
- 128*38mm
Packaging & Delivery
- Selling Units:
- Single item
- Single package size:
- 13X4X2.0 cm
- Single gross weight:
- 0.25 kg
- Package Type:
- carton
- Picture Example:
![package-img]()
![package-img]()
- Lead Time:
Quantity(Piece) 1 - 100 >100 Est. Time(days) 7 To be negotiated
Factory price wholesale smart alarm optical gsm multi sensor standalone combination nest smoke heat leak detector with buzzer
SR-820DHS Independent Photoelectric smoke & heat alarm
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
57ºC(135ºF)fixed temperature alarm
High temperature alarm
Immediately report to the police when temperature more than 57 degrees
Technological details:
| Model No | SR-820DHS |
| Operating voltage | 9V battery |
| Interconnection | N/A |
| 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 |
Excellent stability.High sensitivity.
The detector is suitable for detecting the smoke in house, shop, hotel, restaurant, office building, school, bank, library, computer house and storehouse etc.
| Delivery Time | |
| Sample order | 1-3 working days |
| Bulk order | 25-35 working days |
| Stock order | 7-10 working days |
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.